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I posted in January asking about repairing my expansion joint, long story short I never did anything about it. We had a lot of rain in SoCal last year and the expansion joint got worse with vertical displacement(1/2''in some areas)between the concrete deck and coping, seems like this was...

Just slammed my pool, Its my understanding that a high FC will cause inaccurate testing for pH, what level of FC will allow me to get an accurate test for pH? thanks, Brian

Due to medical issues I let my pool get out of control and want to get back on the right track. When I started the slam the pool was green with algae(pretty sure mustard) with FC 1 , CC 2, CYA of under 10, pH 8, CH 800(very hard public fill water), TA 130. The common way to lower TA as I...

My Hayward DE 4800 backwash valve needs replacing. From searching the net I believe Hayward SP0410X502S is the part # for this filter. There are quite a few negative reviews on this valve, mostly stating the steel slide in the valve fails due to substandard material for the environment(rusts...

I need to remove old expansion joint material at pool deck to coping and replace with new, suggestions on what to use are appreciated. thanks, Brian

I need a Hayward DE 4800 filter tank cover o-ring and am having trouble finding one. I find a Hayward DEX2400K but it's not specifying it's for the DE4800, is this the correct one? thanks, Brian

Puzzled after reading this in the "CYA testing, further reading" section: Always round up to the previous line. If you saw the dot at 40 and not at 30 then you call it 40. First time I've seen this, why go to 40 if can still see the dot, why not use the 30 tested level to add cya amount as per...

Interested in getting opinions on this article/information, primarily cya levels and sanitation. https://blog.orendatech.com/five-things-cyanuric-acid

Any reason I shouldn't add cya when I'm slamming? I've been slacking off on maintenance over the winter since we don't use the heater/pool and am opening it up now, cya levels are under 20ppm, slamming because I have algae . Also I have a two speed pump, will the slow speed be adequate for...

Just installed a Pentair SuperFlo Pool Pump Dual Speed 1.5 HP(old Hayward 1.5hp single lasted lasted 15yrs). On the higher speed the pressure gauge at the filter(DE) is 15psi(same as my old pump), on the low speed setting it reads 3psi at the filter, does this about seem right? Filter info is...

I want to add a check valve to my system. Reading the reviews(amazon) both pentair and hayward have about 10% 1 star reviews, maybe they're cheap knockoffs bought online, not sure. Is there some brand(oem necessary?) or place to buy one that will last at least a few years. It seems like the...

Thinking of getting this pump, 230v, it needs an inline switch at the motor to control the speed. Any reason I can't use it with my existing Intermatic mechanical timer, just wire it in one of legs? I only want to use the timer to turn on the low speed, when I need the high speed I can turn it...

Dang, just replaced bearings and seals on my Hayward Maxflo pump and then DROPPED it carrying it for installation....slightly tripped but thankfully I I didnt fall, only the shaft was bent, just enough so the impeller hits the shroud,will not freely spin. So here is what I'm considering, a new...

Replacing bearings(started getting very loud) and seals on a 14yr old Hayward Maxflo(I replaced all the seals about 7 yrs ago but not the bearings, everything went pretty smoothly until I tried to install the shaft seal(not the ceramic half) on the impeller, the interior diameter of the seal is...

I tried ordering a pump motor from Inyo and it wasn't a good experience, here's the short story. NO customer phone, only live chat, email, and fax. Live chat was anything but, took 35 min with up to 12 min wait between responses from them. The chat guy said I needed a different motor than I...

Bearings need to be replaced or new motor, was running it 24/7 for 9-10 days(ending about 3 weeks ago) while treating pool for mustard algae(successful) during which time the pumped developed a small leak but is no longer leaking, thinking water got into the bearings then, started "screeching"...

cya 40, completed slam at 16, swept/vacuumed daily, water crystal clear, 0 cc, OCLT less than 1. Started mustard level 24 hr slam at 24 today(for cya of 40). Some to the bubles on the solar cover are broken(no news here), should I be concerned about any mustard hiding in them, should I...

If I'm understanding it correctly its recommended to shock a pool first at regular level(12 chlorine for 30 cya) and then up the chlorine for mustard(20+- for 30 cya), and basically run the treatment again, is this right? thanks, Brian edit: meant to use SLAM rather than shock, brain is a bit...

Another member of the rapid rise club here. TA is 100, how do I get down to 60(I want to start here as raising the TA is pretty simple)? I've just finished slamming so my ph is not stabilized enough for accurate measurements. Once the chlorine drops I'll take a ph measurement, so lets say its...

Where can I buy DPD in amounts larger the the typical 10gr containers? I can't believe there isn't a source for it in larger amounts. thanks, Brian

Been slaming(cya 30, chlorine 13ppm, ph 7.3, TA 100) for a 4 days to start the mustard algae process, water is crystal clear(and was at start), no loss overnight. Issue is the cc, I get .5 sometimes and 1.0 other times, little confused about this. DA filter was completely cleaned 2 days into...

First time posting this season, have mustard algae, yes its ma, shaded areas only have growth. I started the usual slam, did some searching for ma slam levels but didn't find it. What level and for how long? thanks, Brian cya 30 slaming at 12+ ph 7.5

Since chlorine is more effective at lower pH, it is normally recommended to lower the pH before shocking at a high FC level, especially for yellow/mustard algae where lowering the pH to 7.2 before shocking at the above levels is best (and remember that the pH test will not be valid during...

I believe pH will rise if TA is a bit too high and lower if too low, right? My TA is 100, pH creeps up from 7.3 to 7.6 over a couple of days, trying to get it more stable to so I'll try dropping TA to 90, I'll post results but I think this will do it. I drop TA with muriatic acid and aerate to...

Doing a little reading on CYA and came upon this article New Thinking: Chlorine/Cyanuric Acid in Balance Seems pretty good, would appreciate feedback regarding accuracy of statements made in the article. thanks, Brian

I lost my view tube that comes with the extended test kit. I'm confused regarding which to buy to replace it, the 9193 or 9197 Taylor view tube? What is the original tube that comes with the extended kit? thanks, Brian

Bought a new cover this year(2 years is about all I ever get from one) and decided to get the standard light blue transparent style. The last few I've bought were the blue on top with black on the bottom. Seems like I have to add more chlorine with the new one to keep the algae in check, can...

Is there some liquid form of cya? I've used the solid form in a sock but if there is a liquid I'll try that. thanks, Brian

Inground pool replastered last year 3/14, Santa Barbara city fill water hard, CH 400, last august it was 475+-, slacked off on CH testing over winter, probably let the ph get to high, now at 725+-. current reading TA 110 PH 7.5 CYA 35 FC 5-6 CH 725 CSi .3 (high end of the "ok" range)...

Is this the right amount chems/proceedure to use for the CH test with the TF-100 test kit? fill cylinder to 10ml mark with pool water add 10 drops R-0010 add 3 drops R-0011L add R-0012 1 drop at a time until color changes to blue, multiply x10 for CH thanks, Brian title should'a been...