TA and pH rise vs CSI?
- Testing and Balancing Your Water
- 17 Replies
What happens (to CSI) if you allow your pH to rise to the higher acceptable levels? That should bring you up closer.
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...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.
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.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
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.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?
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.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!
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.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.
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.Pentair Intelliconnect will be less expensive than a new pump.
I really like this brand also!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.