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It has last year, but this season I made it a point to try and keep it in the negative to help with the calcium build up. Last year I always waited until my pH got to 7.8 or above before I added acid to the pool. This season I test the water every two days ( or right after a bunch of kids are...

I do. with my numbers, I hover around -.17

I have not noticed any scale flakes coming out of the returns or laying on the bottom of the pool.

Thanks! What do I need to keep the PH at to help combat this? What is a good TA I need to shoot for?

It's been blazing hot here in Fl last few weeks. Heat index pushing 110 and this is causing water temps to hover around 91 deg. Does high water temps cause calcium to build up faster on your salt cell? If so, do I need to drop the PH below 7.4? If not, then what else would cause a salt cell to...

A friend of mine has a fiberglass pool. Over the last six months these black spots have appeared throughout the pool. The ones right below the waterline I tried to scrub off with my fingernail and it was not budging. Almost feels like you would need to take some sandpaper to get it out of the...

Its the FAS/DPD test. Add a small spoon of white powder, watch it turn pink, then add drops until it clears and / by 2 to get your FC ;)

Roger! Ill test is tomorrow afternoon.

TA is 50. Just added 4lbs of increaser to bring it to 70. Yes my FC was 5. Using a taylor test kit. FC 5 Alk 50 CYA 70 PH ?? Salt 3000

I started the slam last week, tested my water and brought my pH down to 7.2. Everything went well didn’t really swim too much over the past week. my free chlorine level tested today was right at 5. My ph looked cherry red. Thinking my ph some how got really high in a week I added 48 Oz of...

LOL

Ferd, heres a video I made. Watch the water color.

Will lots of rain cause you to have CC's? Just saw that I have .5 of CC. I know thats acceptable, but Im wondering if this is the beginning of algae since we got about 6" of rain on Sat and Sun. My FC is hovering around 6.

👍 I’ve already dumped about 3500 gal from my pool since yesterday. So I’ll be testing everything tomorrow.

Well *#$¥ !! guess my sticker is somewhat off on the dropper 😰 so my readings have been off 🤦‍♂️ Ok, good to know it’s a even 50/50 mix

It appear the little dropper for the CYA test takes 15ml of water and 14ml of cyanuric acid. can you cut these amounts down equally, 7.5 & 7 respectively? Based on this amount, it should give a CYA reading of atleast 30 reason I ask is I’m almost through my entire bottle of acid for cya testing.

Thanks!

Is my end point the 16th or 17th drop?

based on my numbers, my ideal ph range is 7.6-8 These guys won’t steer you wrong.

i went to the link Richard posted above, saw Frequesnt asked questions and pasted the answer LOL. I’ve got hard water, 500 ish in my pool also. I try to keep my csi I check with a ph of 7.6-8ish.

Not sure what 176 gallons of purified water will do for your pool. The Resin's lifespan will depend on the amount of contaminants in your water. Depending on your TDS Level (ppm) 50, Expected Yield in Gallons Approx. 1410. TDS Level (ppm) 100, Expected Yield in Gallons Approx. 705. TDS Level...

We've been using a cover for the last 2 months at night time. But recently here in Florida the temps have been surging.. Today at 93 was the highest so far this year.. With a water temp today of 89, it felt greatttttt!

Gotcha! Pool temp last few weeks been hovering around 82-85 today it’s at 89 ?

Let’s assume all your chemical levels are in order and your pool gets the same amount of sun every day. Does your pool consume more chlorine when the outside temperature is 90 degrees VS when the outside temperature is 80, 75, etc ?

Game, this will help ya. Im at 8.5 ppm :oops: Still working on finding a sweet spot on my cell % and pump run time for around 5-6 ppm

yep. The Crud builders don’t tell you about ?‍♂️

plaster. 11 months old

In one of my other threads with high ALK, I was told to do a heavy dose of acid to bring the alk down. small doses dont have the same effect as one BIG one. I need to run my bubblers to aerate the pool and let the ph climb. Ive always let the ph get to 7.8-8.0 before I knocked it down to 7.4...

Whats the "FP Levels?" I was finally able to get my Alk down to 70. Thats after (2) 65 oz doses of acid . Now Im at FC 6 PH 7.2 ALK 70 CYA 80 Hardness 500 Salt 3400 This gives me a CSI of -.51 :eek: But when I change my PH to 7.6-7.8, the CSI goes up to -.15 to +.03

Whats more important. Your CSI or PH level? Using pool math, I see that the PH has a significant value to what your CSI ends up being. Based on my chemical levels, my PH needs to be between 7.6 and 7.8 to have a CSI of -.15 to +.03