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Boy, you got THAT RIGHT! That fact is a big reason I got out of the biz full time and went into HVAC back in the mid '90s. HVAC has its share of head-in-the-sand (or somewhere else) as well, but nothing like the old guard pool guys...... So - CO2? Where does that come from? Yes, she does keep a...

For what it's worth......the customer called me back today to say that the salt level 3 months ago was at 3,000. I bet that chem geek is right and the pH has been higher in the past. We'll service the heater tomorrow. I'm thinking that it's likely that chem geek is also right regarding...

Hey chem geek - Thanks a bunch for the info!! I'll need to do some thinking and discussion with the owner. I'm still waiting for a reply from her as to what the salt level was. I'm leaning toward changing the bulk of the water but that brings its own set of problems with iron. I'm in the...

Ouch! I guess I spaced listing the pH as I was listing readings. The pH was a high 7.6. Thanks Texas Splash for catching that!

I have a customer with a 10,000 gallon 10x30 rectangle indoor vinyl liner IG pool using a Zodiac Duo-Clear SWG, heated with a Lochinvar ERL 152-8009 gas fired pool heater. My only involvement here was in 2010 when I replaced the liner, installed the SWG and heater. I looked at the pool this past...

Thanks! I'll be studying on how to automate liquid chlorine monitoring and feeding - or - maybe go to salt chlorine generator? I sure would like to avoid a buildup of CYA and what that entails!

I posted a couple of questions in early June '15 re; CYA and iron control after I re-filled my AG pool with its new vinyl liner. Thanks to the great replies I received I've learned and observed some vital facts. I've been in the industry for way longer than I care to think about, yet have...

I received my new TF-100 test kit last week. Pretty nice kit! Of course I had to go play with it as soon as it arrived. I especially like the nice crisp colors on the handy small test kit for CL and pH. The colors are so much brighter and easier to see than in my aged Rainbow 78HR kits that have...

Well, this forum added an element of fun and challenge to getting my horrible pool water cleared up during the fresh fill after I replaced my liner. It took 9 days, 144 oz. of iron sequestering chemical, 2 quarts of algaecide, 6 lbs. of shock at three different times, 2 gal. (and counting) acid...

The bigger the patch, the more difficult it is to work with. I've put some patches as big as two feet long by a foot wide - it's a CHALLENGE! Used scuba to do it. Sure, you can patch over all the cuts with one big patch but it will be tough. Will the patch be applied to the very bottom of the...

Buy a couple of "Big Job" patch kits or something similar at your local Ace Hardware store. The glue works well underwater, it's amazing stuff. Those kits include a piece of clear vinyl. Cut the vinyl so it's maybe 1-1/2" bigger than the cut you're patching, round the corners. Put the glue on...

Ordered one! Can't wait to get Thumper to thumpin'

Bingo! That's the one!!! I know I saw one at a customer's house last year, just didn't know what model ot brand it was. THANKS!! I googled around a bit on it and it sounds like it's what I'm looking for. There was a pretty good review on it at Amazon as well. THANKS!

Since the grandkids aren’t around to stir up the pool and help keep it clean, I want to throw Thumper back in to get to work. But – I’m afraid to do this now that there’s a new liner in the pool. Thumper hammered away at the old bag for hours at a time while stuck on the main drain and...

It's surely possible the cap is bad, it can be tested with a cap checker - a motor guy or HVAC guy (or a properly equipped poolguy) can test it, the mfd rating is printed on the side - probably something like 161-192 or thereabouts. If the motor has been sitting and not been run for 8 years, you...

Thanks for the nice comment, AimeeH!

Thanks! I am enjoying the forum!

This topic if CYA and chlorine is becoming more fascinating by the post! I stole a little work time this morning and was googling around on this subject. It led me to a couple of other good websites, all of which agree with what you've been saying (not that I doubted you, I was just becoming...

Geezez.......I'm amazed! I'm feeling like I've let many of my customers down, and myself, through the years because I sure wasn't aware of the scope of the CYA. I wonder why the chemical manufacturers put so much in their product? Not to sound lame, but .....really? Do they do that so they sell...

I just ordered a TF-100 test kit. Am looking forward to providing those test results with further questions. My once brown pool full of iron 9 days ago is now shimmering clear, CL at 4.0 and pH at 7.5. I'm wanting to keep it that way! Thanks all for your input!

I'm shocked! (pun intended....)

OK, thanks for that input on the CYA! I have enough on hand to get the CYA to around 25ppm, however, I was a little concerned there when the water was so brown that I may want to let the CL diminish to 0ppm if I needed to add more sequestrant. At this point, I think I may be past that concern...

I was happy to see a little sparkle from my water this morning! After 144 oz. of Sequa-Sol, half a dozen vac jobs, 3 shock cal/hypo shock treatments and 10 (or so) filter cartridge swaps the water has cleared up nicely since it went brown with the first shock 9 days ago. The pH this morning was...

Thanks, chem geek! What you say makes sense and is proven by what I'm experiencing.

From the Pool School page - "If you have metals in the water you will need to use regular doses of a sequestrant to prevent the metals from forming stains. Sequestrants bind to the metals and prevent them from depositing as stains. Sequestrants slowly break down in the pool, so you need to...

Hey! Thanks a million, guys! This is amazing to get such in-depth true knowledge. Were or are you guys in the pool biz? I'll check out the options that you've given me. I sure do appreciate it! Chem geek - I see you have Fafco solar panels. I installed a few Fafco systems back in the day. Is...

I replaced the liner in my 27’ AG pool with 5’6” center depth this past Memorial Day and filled it with one garden hose through my home’s iron filter. Filled it at half throttle, 600 gallons between regenerations. It took two weeks to fill the 20,000 gallons in this pool. Added 144 oz. of...

Does the pool have a "main drain'? ie;a fitting at the deep end from where the filtration system can draw water to filter? If so, is the valve open? Is the pump strainer clean? Filter clean? While I agree with other's observations re; water chemistry, circulation is mighty important too. I...

"From what you describe, it sounds like your well water is basically pure iron with a smidge of water :wink: you probably could have sold all that iron precipitate to a local steel smelter and made some cash. I suggest you find a good lawyer and begin to cash in on the mineral rights your...