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Pebble Tec vs. Plaster

We are getting ready to redo our pool. We are leaning towards pebble tec instead of plaster this time. I was never happy that the plaster didn't stay pristine white. I think a colored pebble tec will staying looking good longer.

What should I look for in pebble tec? Does it have to be the brand name or is generic pebble just as durable? Does a colored pebble last longer and stay looking good longer than a traditional white plaster? Thank you!

Fluctuating Flow Rate

I have my ScreenLogic app set to rpm for my Intelliflo VSP. I usually have the pump rpm set to provide about 25 gpm. Over the last year the flow rate sometimes drops 1-3 gpm within a few days after setting it. Other times it doesn't change for a much longer time. When the flow drops I'll increase the rpm again to about 25gpm. But then a day or few days later the flow rate will have increased beyond 25 gpm by the amount I recently increased it. Is this operation normal? What causes the fluctuation? Is the flow rate monitored internally by the pump or an external flow sensor?

DIY LED Replacement for Pentair Intellibrite Lights for under $100

I've been running this configuration for more than 500 hours now, so I'm confident to share it with the community as a possible solution to others who have had their intellibrite light die on them only to find out that replacing the poorly designed LED driver board is almost as much as replacing the whole light, or in a case like mine with a spa light, there is no OEM LED driver replacement. To do the replacement requires repurposing an existing pentair Intellibrite enclosure.

My Intellibrite 5g spa light (being used as a pool light for my smaller pool) died a while back. I built my own with some help from the Internet and some off the shelf 30 watt WS2811 Pixel modules from AliExpress. Following the recommendations of that youtube link, I swapped in a Quin-LED Dig Uno/ESP 32 controller which uses WLED software (free). I can now get millions of different colors and dozens of different lighting effects, plus its programmable, so you can design your own light shows and there are various modifications for the Dig-uno/esp 32 board, like microphones you can attach to have it change color to music, etc.

My pool is smaller and uses a spa light instead of the 10" pool light, but if you essentially double the recipe below and install two pixel modules, it *should" work exactly the same for the pool light, although I haven't tried it yet. That said, I've always been a little frustrated with the lighting level from the spa light, so I upgraded the OEM pentair 18 watt LED to a 30 watt pixel module,. It is MUCH brighter. The WLED software does allow you to adjust the brightness of the LED as well though which is nice. If you have the 10" light, you can fit 2 of these, which would probably be about twice as bright for that model as well.

The cost of everything was under $100:

AliExpress WS2811 RGB Pixel Module $10 (you will need two of these for the 10" pool light)
QuinLED DIg Uno/Esp 32 w/ external antenna (Drzzs.com) - $45
12V Ac to DC rectifier (to Power Dig-Uno which powers the 12vdc pixel module) (Amazon) - $5
Aluminum sheeting (home depot) and nylon spacers (Amazon) for mounting pixel module and dig uno inside Light transformer - $15
Thermal compound for heat transfer (Amazon) - $7
New Pentair gasket- $20 (optional)
Re-used existing pentair housing

It required a bit of DIY skills for the electrical, fabricating the aluminum, hooking up and configuring the Dig-uno etc, but nothing crazy.

This pixel module is 2 pieces (see picture), the led portion is separate from the PCB Board. The way I mounted the control board was separately, I put a wrap of electrical tape around the pcb to keep it from grounding to the case and angled it underneath the pixel module and the aluminum sheet its mounted to. I expect that this will insulate the pcb from the direct heat better than the Pentair model, keep it cooler and help prevent it from cooking like the Pentair board.

To make this run from the WLED app instead of power off/on sequences like the Intellibrite, I repurposed the ground wire for the data communication. Since its zero volts DC you can however run the black wire to ground (from rectifier neg to ground) in the transformer. This is covered in the youtube video. Technically a ground wire is not required by NEC at the fixture, so I felt ok with this.

Overall, Im very happy with the results. I saved a ton of money over buying a new spa light, I have a much brighter light in the pool and this is far more flexible and customizable than the OEM was. I also expect this to last longer, but if it doesn't, it's only $10 to fix it next time and I bought a spare pixel module just in case.

Steps:
Installing the LED Module
1. Remove the old light and the LED driver board
2. Using the old board as a template, trace the size and the hole locations for the mounting screws onto a piece of aluminum sheeting
3. Cut 2 extra grooves on either side for the wiring to pass through. Smooth out the edges of the grooves so they dont cut the wires. I also used electrical tape to insulate them.
4. Mount the pixel module the board using the thermal paste on the back of the module and using 4 small screws to mount the module to the aluminum.
5. The Youtube video explains how to determine the correct wires to connect for + and - , the ground is repurposed for data.
6. Wrap the PCB around the edges with electrical tape and mount it diagonally at the bottom of the pentair fixture. I did not mount mine in any way as it really doesn't have any space to move around.
7. Install the pixel module and aluminum plate back into the Pentair. Don't close it back up yet until you've tested


Installing the WLED controller and electrical:
1. Follow the video link for how to wire the DC rectifier. The photos below show where I mounted mine in the 12 V transformer enclosure (top shelf). My transformer had 3 different voltage outputs, 12, 13 and 14. I used the 13v output to feed the rectifier due to the drop in voltage of 1v out from the rectifier.
I used the power outputs to the light/modules directly from the DigUno board since it already has capacitors built into it. This was plenty of power for the single pixel module and *should* be enough for two pixel modules for the 10" light but I didn't check and you will need to confirm. Otherwise you can take power directly from the rectifier but you will need to add capacitors to the pixel modules listed because they don't come with it.
2. I created a mounting board out of the left over aluminum sheeting, I formed into a raised platform for the DigUno/ESP32 board to sit on and allow mounting to the side of the transformer.
3. Setting up the DigUno and ESP32 is not difficult but has a number of steps. There is a lot of information posted on the Internet already about this so I'm going to share links rather than incorporate full instructions here. For wiring, see this: QuinLED-Dig-Uno Wiring Guide - quinled.info and to configure the ESP32: Pre-Assembled QuinLED-Dig WLED manual - quinled.info this will configure the ESP32 to your home wifi so you can connect to it later through the WLED application.
Note: Make sure to change the resistor switch on the DigUno, located in the middle of the pcb (it sits under the ESP32 board) to 33Ohms to make it work for the longer distances needed between transformer and light. THis is necessary for anything over 25 ft.
3. I used the spacers noted above the raise the board off the mounting sheet
4. I used one of the punch outs in the bottom of the transformer to mount the wifi antenna for the DigUno / ESP32
5. Mount the DigUno into the transformer. I used the side wall of the transformer (see photos)
6.Install WLED to your smartphone and configure
7. Perform a quick functionality test of the LED pixel module before putting back into pool. Note: The pixel module/enclosure is designed to be cooled by the water, do not test the module outside of the pool with the lens/gasket installed.
8. After testing reinstall the gasket, cover, retainer for the light and reinstall back in the niche.

Completed Project Video. I created a nice custom 4 color transition:


Pixel Module mounted in housing.
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WS2811 Pixel Module:
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Dig Uno/ESP32 on transformer mounting plate:
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Rectifier mounted in transformer
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DigUno Mounted in transformer
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All transformer mouting and wiring complete:
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Antenna mounted in transformer:
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WLED Application:
Screenshot 2025-01-21 at 9.51.32 AM.jpeg
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TA and pH rise vs CSI?

I have a 20k gallon set plaster pool and an attached spillover spa. We moved in January so all of this pool maintenance is new to me.

It’s currently winter so the pool has been cold (50s) but it’s not closed, I’m still running the pumps, cleaning, etc…

After my recent test results it looks like my CSI is below -0.3 which is not recommended. However, I’m having a hard time figuring out how to balance CSI as it seems everyone suggests having lower TA values, but I can’t seem to bring CSI down without having higher TA values.

Test Results:
pH: 7.5
CH: 270 (targeting 350)
CYA: 35 (targeting 70)
TA: 70
Salt: 3400

This puts my CSI at -0.63 currently.

Any ideas on how to best manage this?

Need Help with Stubborn Mustard Algae

you can save yourself the time for next one by not even bothering with the pool store test. They good up the CYA test more often then the other it seems. I was able to drop my CYA in half (according to the store test) by just testing the same water at another store.
That's interesting. We only have one here and I only use it when I'm concerned that my readings are off and need a double-check. Their results were the same as mine for yesterday, so I think they are probably right. This whole process has been so perplexing that who knows at this point...

Need Help with Stubborn Mustard Algae

Thanks! For CYA, I let it warm up first and also had my readings double-checked at the pool store to make sure I wasn't making a mistake, so I'm pretty sure it's accurate. I
you can save yourself the time for next one by not even bothering with the pool store test. They good up the CYA test more often then the other it seems. I was able to drop my CYA in half (according to the store test) by just testing the same water at another store.

Need Help with Stubborn Mustard Algae

Sorry you’re still struggling!
A couple things…
*Take your cya sample indoors and let it warm up to room temperature before testing to ensure your cya measurement is accurate. It can read falsely low at lower temperatures.

*For the drain you can use a pvc pipe to direct some liquid chlorine into it. Be sure to brush the area well as to not bleach your liner. You may also want to spray it out with the water hose nozzle on blast first. You can try attaching it to your pool pole - maybe with an accessory still attached so you don’t accidentally scrape the liner with the end of the pole.
*Check your weir door foam. On many weir doors it is removable and the hidden side can be nasty.
* what type of filter do you have?
Thanks! For CYA, I let it warm up first and also had my readings double-checked at the pool store to make sure I wasn't making a mistake, so I'm pretty sure it's accurate. I have a sand filter and the sand was changed last fall.

Great idea for the drain! I will have to pick up some pvc to try that. Did you mean spray out the PVC first or the main drain? I will also check the weir doors. I haven't replaced them since the beginning of the season last year and that could definitely be a possibility.

As an update, I turned on the heater to get the water temp to 60 degrees and used the robot all day yesterday and will put it back in today. Our Polaris can be used in 55-95 degree temperatures and I thought that it would help keep some continuous movement in the pool.

Stain or Algea? How to Treat?

Thanks for the responses thus far!

The CH readings shown are accurate—so are the other readings. I’ve checked the LaMotte Spin Touch against the Taylor Kit numerous times—the LaMotte Spin Touch results are aligned with the Taylor results every time I’ve checked.

For a liner pool, low CH is acceptable, therefore, I haven’t spent/wasted the money on the calcium to raise it. The CH in my pool water test results is very close to that of my makeup water.

I typically keep the CYA in the 70-80 range as TFP recommends for a salt pool, but as I mentioned before, salt was low (and therefore no chlorine from the generator), which also meant CYA was low. These low levels were caused from excessive rain overflowing the pool—and truthfully, in the off season, the salt and CYA levels were likely on the low side before I left for an extended period. Once I know I have the situation under control and won’t need to slam the pool more, I’ll raise the CYA back to proper salt pool levels.

The LaMotte test disks I’m currently using (4329-H) also test for copper and iron. Copper levels consistently run at 0.1 or 0.2ppm. Iron is the same at 0.1 or 0.2ppm. I’ve confirmed the copper value is correct using the LaMotte 3619 chemical drop test; however, I’ve never verified the iron readings (although I don’t have much reason to think it’s incorrect). So, I think these stains are likely not iron—however, I can certainly try some citric acid on some stain spots and see what happens (I keep some citric acid in the shop for flushing radiators).

Thank you!
I really do wish you luck with it. Noone here will be able to help much with spintouch results. Lots of members have chase their tails with it before giving up.

Help with new Timer and twi speed pump

J,

We need more info... What voltage is coming in on the L and N connections?? 120 or 240?

What are the two relays controlling?

In general, a 2-speed pump needs a SPDT relay to change between Low speed and High Speed... When using 240 volts, L2 would go directly to the motor's common connection. L1 would go the timer relay com connection and then NC output would be connected to the Pump Low and NO output to the Pump High..

You need to follow the diagram on your motor!!!!

Thanks,

Jim R.

I'm trying to figure out how to build a DIY solar-powered recirculating spa heater for my 500-gallon spa

I had thought about that, but I discounted it because, in the summer, the spa warms up, so there isn't any "heat loss" during the day.
I forget the actual temperature rise I documented last summer where I had this 120VAC pump running this rig (i.e., not solar powered and not battery powered).
As I recall from last summer, that pump pushing water through two hundred feet of black rubber garden hose DEFINITELY raised the temperature by about five degrees.
Without the pump, the hot summer sun raised the temperature about the same amount, so the total temperature rise was somewhere around ten degrees.

Given there is no heat loss (except, of course, at night), I'm not sure what the action item to calculate is, but I do appreciate the advice.
There is for sure heat loss 24 hours a day if the water temperature is higher than the outdoor temperature. It might be slower during the heat of the day but it’s there. If the water temperature wasn’t decreasing during the day, it means your heater was adding more heat than was being lost.

How to add phone remote access?

Pentair Intelliconnect will be less expensive than a new pump.
Look at this option. IntelliConnect has two additional relays for external devices. As long as he's not controlling valve actuators, this may be a good low-cost alternative.

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CYA level/other chemical stuff

Hi all,

Recently moved into a new house with a pool, and it's our first pool. Of course they were floating tabs the entire time it was on the market (November-February), and now my CYA is bonkers high, at least 100ppm. I understand that is outside the recommended range. I don't need to SLAM, and I live on the coast of Texas with zero shade to the pool. Is there harm in leaving the CYA high, other than having to maintain a higher FC level? I'm not necessarily in a place to do a partial drain and fill.

FC: 5 (in the process of raising this)
pH: 7.4
TA: 90
CYA: 100
CH: 400
CSI: -.28

Thanks in advance, still trying to wrap my head around all this. I'm using a Taylor test kit.

What did you do to your pool today?

Brought all my levels up to "Spring-ready." Gunna turn on the ol' SWG tomorrow.

I used a new-to-me brand of CYA this year, as recommended by @Newdude. It's the shizzle!! 40oz dissolved into my skimmer in about 30 minutes, with only a couple of two-minute squeeze sessions, and without any stubborn rocks leftover. 100% dissolved! That's a record, by far, and lessened the chore considerably. Thanks 'dude.

Now I suppose CYA granules are made by only a couple manufacturers, and perhaps this year's batch just happened to be better than other vintages. But I'll buy it next time, for sure. And at least this year, they're making a good batch, and this brand is quite a bit cheaper than many others on Amazon.


I bought it just a few weeks ago on Feb 4, 2025.
I really like this brand also!
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Need Help with Stubborn Mustard Algae

Sorry you’re still struggling!
A couple things…
*Take your cya sample indoors and let it warm up to room temperature before testing to ensure your cya measurement is accurate. It can read falsely low at lower temperatures.

*For the drain you can use a pvc pipe to direct some liquid chlorine into it. Be sure to brush the area well as to not bleach your liner. You may also want to spray it out with the water hose nozzle on blast first. You can try attaching it to your pool pole - maybe with an accessory still attached so you don’t accidentally scrape the liner with the end of the pole.
*Check your weir door foam. On many weir doors it is removable and the hidden side can be nasty.
* what type of filter do you have?

Variable speed pumps on Pentair Intellicenter

bP.

Sounds like your idiot installer wired your VS pump to the load side of your IntelliCenter's Pump/Filter relay. Which is wrong!!

Besides what Allen listed above...

The Pump/Filter relay is only closed when in the Pool mode or Spa mode.. If you wanted to run the pump without being in the Pool mode or Spa mode, it would not have any AC power.

Do you have a Saltwater pool??? If so, I suspect they also screwed up the installation of the cell's power center... :scratch:

Thanks,

Jim R.

New Hot Tub Owner - Taylor Test Kit

@mwhitney
While 3ppm loss sounds a little high, also understand that the higher the fc the faster the rate of decay. I presume, as the others have mentioned, that there was also some residual batherwaste involved there.
Don’t sweat it too much, just feed the tub what it needs to stay above minimum.
Aim highish so you don’t have to micromanage.
Something like this:
Start around 6ppm fc —>
Use tub for say 30 minutes (whatever your typical use is) —>
Check your fc after to ensure you never get below minimum—>
dose to say 10ppm—>
Tomorrow when you go to use the tub check where you are fc wise, if its in the 6ppm range and that worked fine for your last soak then jump in & repeat the process knowing that you can use the tub in this manner and frequency without having to constantly dose/test. You may need to tweak these numbers but you get the idea.
My tub is about 100 gallons smaller than yours so your bather load may not be quite as high as mine.
Main thing: If you aim highish you sure your bets.
There is no upside to riding the minimum line.

Note that ph testing is invalid above 10ppm fc so simply check that before raising fc that high. It’s usually something I do before using the tub anyway.

Key takeaways:
Chlorine is King 🤴
(between min & slam for your cya)
Ph is Queen 👸
(Anywhere in the 7’s is perfectly fine - even riding 8.0 for a little bit is ok)

All the rest follows.
Not inconsequential, just not as high priority as Fc and ph.
Ta in the 50/60 range works best for most to help moderate ph rise - if yours is higher it will come down as you manage ph so no biggie.
Ch up to 150 to control foaming if it occurs otherwise don’t worry about adding any.
If much above 200 consider using some amount of softened water to fill.

In a hot spa cya does degrade (the hotter the water the faster this happens) i keep my tub hot 🥵 around 104/105 so I use a little dichlor every couple of weeks to keep cya in range.

* I see in your logs that you are only logging your additions.
Log your test results first
(by hitting the “+” at the bottom of the overview page then hit the “+ log test results” button) then log your additions. This help you & us keep track of what’s going on if you have an issue. This also automatically fills all your most current parameters in each card so you don’t have to type them in again.

Easytouch Problems

Eric,

From your PC, show me your schedules..

Also... Show me egg-timers..

Something I learned back in the stone age, was to only troubleshoot one problem at a time... :mrgreen:

Keep in mind that if you manually turn something on, it will stay on until you turn if off, or the egg-timer turns it off.. (Kind of what the egg-timer is for..) Also... if you manually turn a scheduled circuit on, depending on when you do it, the schedule 'may' skip its next on time.

As a test, try this,,, Using ScreenLogic, turn on a light.. See if the ScreenLogic Icon for the light is on. Then go out and ensure the light is on. Next, using the main panel's buttons, turn off the light. Check that the light is actually off.. Then check ScreenLogic and see if the light Icon is off.

Where is your Inside antenna and Protocol Adapter located? If near your Internet hub, or router, move it further away if you can.

Let me know what you find.

Thanks,

Jim R.

How to add phone remote access?

Update, he's also wanted to control the fountain & lights in the evening when having guests. I informed him if he wants to do that too, he's going to require investing in a whole automation system, correct?

If correct, to retrofit a Pentair install, that's prob 3-5K plus a fair amt of electrical wk, yes? W automation, he can add the ph App too.

Does the Pentair automation come in 4-8-16 modules like the Hayward, or some variation thereof?

Thanks again

And new dude, your posts are almost up to your gal size pool; if you were Jim R, you'd already be there / :)
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