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I just noticed what looks like burn marks on the floor of my pool (vinyl liner). I'm pretty sure they weren't there this morning.When I brush them, nothing happens. I turned on a Hayward chlorinator this morning with pucks (I usually don't use but wanted to add some CYA). I turned it off now...

Need a good diagnostician ;) When I turn off my pump to backwash, the water level by the pump strainer basket goes down, I hear a hiss from the filter, and water is rushing through the multiport valve for a few seconds. It was never like that in the past. If I wait until it stops and turn to...

When I test my PH using the Taylor kit, it initially registers at 7.0 after shaking well for a few seconds. But when the sample sits idle, the color changes every few minutes and the level keeps climbing from 7.2 until 8.0 + Is the initial reading the correct one and is this normal behavior?

Just opened the pool and added too much chlorine before checking PH. My numbers are CYA: Doesn't register FC: 10 CC: 0 TA: 60 CH: 300k If my actual CYA is really under 30, my shock level would be 10, and if 30, it would be 12+. So I'm either just at shock level or a little lower. I was...

I have 3 returns and one of the standard eyeballs broke. I purchased a new type on Amazon with a thin slotted opening that claims to increase circulation (link below). When I turned on my pump, it got the circulation going better than ever. However, a day later, my pool level dropped a few...

I noticed an old post where @CUTiger78 suggested a cork for a worn out plug hole. I tried it with a cork one size too small and it partially broke and is pushed into the heater :hammer: Do I need to have someone open the heater and locate it or what will happen if I leave it? (The cork piece...

I opened my pool, cleaned out the junk, slammed and balanced using BBB, and my numbers seem to be right, but the water is still cloudy after a few days. I passed the overnight test and I am wondering if I need to slam again, give it time, or is there something else not showing in the tests that...

I finished balancing my pool and I'm nervous that I put in too much CYA. Also, the water is crystal clear, but thought I would post the numbers in case the levels should be tweaked. (For example, should I raise my TA slightly?) FC: 7 CC: 0 PH: 7.6 TA: 100 CH: 110 CYA: 55-60 Thoughts? Thanks!

As rookie BBB'ers, we have aced last season living by the letter of the BBB law, but we will be going away for the summer, and have family using our pool on weekends only. A neighbor has agreed to do whatever light maintenance is necessary, including testing with the Taylor a few times a week...

I had an elephant cover installed at the end of last season but much too late - after most of the leaves from nearby trees already entered. Before opening, the middle of the cover was indented all the way down and I opened to water level that was 25%, and hovering around the middle of the pool...

The BBB ten commandments states that you pass an overnight test with 0.5 CC or less. But is that really passing and it is no different than 0, or does it still indicate an algae problem that is lurking and as a precaution, the pool should be slammed until the CC is down to 0?

I have been losing chlorine rapidly. These factors are in play: a) The pool is in direct sunlight, b) we have had a heat wave in NJ so the water has been between 88-92 degrees, c) the pool is fairly active and used most of the day, d) my CNY is below recommended levels. I know that the...

I have a lot of DE coming into my pool and it is not clearing up since I opened it a couple of weeks ago. I am giving swimming lessons in my pool starting next week and I really need it up and running, so time is of the essence. My top manifiold was cracked so I ordered a new one for $50, but a...

Hi all, I recently discovered the website and I love it! When cleaning my D.E. filter grids by myself for the first time, I noticed the top manifold has a crack (I attached a photo to this post where the crack is). I turned on the filter with the cover off and water and DE is coming up from...