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Thanks! Good call, given the age: question about upgrading from a 200k to a 300k BTU heater for a 22,000-gallon pool: given the size of the pool and that I only use the heater occasionally but want it to heat up reasonably quickly, thoughts on upgrading to 300k BTU?

I've noticed significant rust in the combustion chamber housing of our 2007 pool heater, particularly where it connects to the manifold. We've had the pool for three years, but this is the first time I've inspected the heater's interior. I managed to clean up the rust and temporarily fixed the...

I checked the manual for the skimmer left by the previous owners, and it turns out there's a "trimmer plate"—a device for regulating the water flow into the skimmer, which then affects the flow to the pump. I've never actually used it, as the flow is controlled by the valves on the three...

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I don't think my pool has an equalizer line (see pic). There are three lines coming into the pool equipment—one for each skimmer and one for the main drain. With this configuration (built in 2004), the blue tabbed and white square plugs in the skimmers seem to be permanent fixtures. Would you...

Yes, there's a main drain at the deep end. There are three lines with valves: one connected to each skimmer and another to the main drain.

Thank you!! I've attached a hopefully clearer picture of the blue plug.

Having gotten a handle on water chemistry thanks to TFP, I'm ready to take on opening the pool on my own this year. My setup has two skimmers, each with a tall skimmer plug("Gizzmo"). Additionally, one skimmer houses a blue, two-pronged "plug" at the bottom, and the other has what appears to be...

I have noticed chlorine depletion during the day with no bather load when the cover is off. There is some light that hits the water. I have added a tablespoon of CYA (about 7-10 ppm) and we'll see how that goes! Although I cannot measure it with my test kit (know it's there but it doesn't...

Thank you. Food for thought, although I have not found through my own observation that the chlorine goes down that much after an hour or so of heavy use. Testing I have always found a minimum amount available and sometimes as much as 2-3ppm. Starting at 4ppm (with 0 CYA) provides, well, 4ppm of...

Oh, believe me, I do! Most of these parties involve kids right now. 6 kids swimming around in there and the chlorine drops quick :) Close it about every hour or so for 10 minutes to shock and circulate. The nice thing with no CYA It does clear up fast since bringing it back up to about 4ppm (2-3...

It is outdoors, used during the day, but fully shaded as it is under the deck. Doesn't get any direct sunlight so think I'll keep the CYA out for now. Thanks.

Resurrecting an old question posted here on whether or not to add CYA to a hot tub. The reasons given for adding CYA conditioner to a covered hot tub in older posts seemed to be comfort-only. Without CYA, the reasoning goes, having the extra hypochlorous acid floating about at the necessary...

Indeed, I have lost no measurable chlorine overnight. Exactly the same reading. 4ppm FC at 9pm. 4ppm at 9am FC. And it is actually holding steady in the sun! Think I am good until the next problem creeps up :)

Well that's just not true! You apparently have never lived a wet climate (or a cold one!!). We have to drain it below the jets every year to close it (it freezes solid) AND there have been at least 5 rain storms over the last couple years I have owned the pool that deposit 4-8 inches of water...

So I converted my hot tub to salt last year, thinking I'd start with that, and move to the pool this year. I love my salt water spa! I still have to add liquid chlorine during heavy use but the salt generator keeps a base line going when not being used. So nice, so natural. But, then... we are...

I appreciate your confidence in me! I'm beginning to think the margin of error with those tests can be wide, regardless of who performs them. I do agree as per the suggestion I have a pentair CYA test on order and I was able to find an HTC black dot test locally, which came with a real limited...

What makes you say that? I'm using a good test kit: Taylor K-1003 with a FAS test. As I stated, it lacks a CYA test. Theoretically (according to the literature) CYA is stable and once the level is established it doesn't need to be tested again or at least that frequently. The original CYA test...

Could be... pool guy performed Taylor black dot test and got a "zero" reading. He did a double-take and tested again because he thought something was wrong. The test strip I used showed the same color as tap water. I'll take a sample to a pool store with a digital readout (for what its worth) to...

Man oh man, I wouldn't believe it, if I didn't see it. This is my second year of owning a 22-thousand-gallon pool and the CYA mysteriously "disappeared". About a month after opening, in June, the CYA level tested at 40ppm and the pool chlorine demand seemed normal. I have been using liquid...

OK, as a new pool owner, I'm trying to manage pool chlorination while balancing pool chemistry and my own availability. Right now the pool is balanced: CYA is around 50, PH 7.5, Alk 100. I'm using liquid chlorine (sodium hypo) so CYA doesn't get out of hand. So I'm reading never to mix Trichlor...