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I never heard of the Water Weld Dave mentioned. I'd try that before anything I suggested.

There are a few options, I think, depending on what's going on. Is the leak from the bond between white pipe and the black 3-way? Is nothing cracked? If something is cracked, yeah, rip out and replace. It is very hard to stop pressure side leaks by repairing with glue or FlexTape. If it is...

I have a pool that has an epoxy painted, plaster bottom and fiberglass walls. It's also a 30 year old pool, so I am certain the gelcoat on the fiberglass has seen better days. Nylon brushes don't seem to touch the staining and general dirtiness of the surfaces. I have found that Scotch Brite...

If the water is clear maybe just do an OCLT when you open and see if you need to SLAM. I wouldn't worry too much. Temps are supposed to drop next week.

Pittsburgh area. I opened on Sunday. 55 degrees. 1 FC. 7.5 Ph. I had some repairs to make, but I wanted to get the water balanced before I turn on the heater. Today and yesterday were really warm, so the water temp is up to 59.

I just opened my pool and learned a few things about closing I'd like to share. I closed early October, when the leaves were really falling. It was a battle to keep the pool leaf free, but I managed to keep the pool pristine. Just as I was pulling the solid safety cover on, a gust of wind blew...

For grout, you could look for a liquid grout in a tube. It might be tough to get a color match, though. I am sure sanded grout will work, too, but you'd want to seal that when it cures. I have also repaired my concrete coping using a 2 part concrete epoxy. I am sure that the construction...

I'm down to my normal chlorine level, and it's maintaining with no additions. I haven't added chlorine all week. After the last filter cleaning, my filter pressure has been lower than it has been all SLAM (even though it was cleaned several times during the slam). I think the SLAM made my...

Same thing happened to mine. I actually used a nail to scratch the 10 ml line in mine. I thought sharpie would wear off over time.

I'd cover it just to save the frustration of having to drain a pool full of debris, and also in the off chance you decide not to replace the liner. Another option might be to replace the liner now, and close the pool shortly after. You may get a discounted liner this time of year. Plus, you get...

I have officially ended my SLAM on Labor Day (9/7) after I met all the criteria. A final brush, vacuum, and filter cleaning (see post above) marked the occasion. The chlorine levels are slowly coming down. I haven't had to add chlorine in 3 days.

Is the light gray water pouring off my filter dead algae? If so, there's a lot of it.

So clear, at night, when the pump is off, walking around the pool makes the bottom look trippy

Last night I had an FC drop of 0, but a CC increase of 0.5 from 1 to 1.5. I guess that falls within the margin of error, but with a CC of 1.5 it seems I'm still killing something. The plan today is to wash down my cartridge filters after a brush and vacuum.

Does anyone have a solid maindrain cover for a sealed off maindrain, or have fabricated one? I haven't found one on the googles, yet. When my pool was built the main drain was purposely capped off from the outside. However, the installer still put on a normal maindrain cover. Debris and dirt...

Thanks. Perhaps this "super slam" is the finishing move I need. :)

Well, that was fun while it lasted. I'm super duper chlorinating at the MA level, and got a 2.5 FC loss last night, and a CC of 1.5 this morning. It stormed a bit last night, and I ended up with another inch of water and a few leaves in the pool, but that shouldn't affect chlorine levels...

Today is an exciting day for me, TFPers. Today I end my SLAM. Last night I had a drop of 1 ppm and my CC is 0.5. I believe I had a mustard algae problem, so today I am following the mustard algae slam process, and super duper chlorinating for 24 hours, according to this chart: Chlorine/CYA...

I guess that's the key. If I can see it at 50 and not at 30, I'm in the acceptable range. Maybe being exact doesn't matter that much if it's within the acceptable range. Same with 80-100. That range is high, and being exact doesn't matter as much. The method to bring it down is still the...

I was mixing it, letting it sit for 30 sec, mixing it again, letting it sit for 30 sec, and then testing. In any event, my pool water measured at 100, according to the sample dot. The dot completely disappeared at 80. Either way, that's high. I'm going to do a partial drain and refill.

Ok, but clearly the black dot is still visible. So, really, without training your eye with a standard first, CYA could be very inaccurate. Since chlorine levels are based on this, it seems pretty important to get right.

This is the measurement at 30 ppm

This is the measurement at 50ppm

I followed the instructions, but the lighting was evening light. I'll try again today with bright sun.

After an overcast day yesterday and some rain the day before, my FC level only dropped 2 overnight last night, but my CC increased 1.5. I will say, though, the pool looks brighter than ever, sparkling and clear this morning. I plan to brush, scrub down hidden areas, vacuum, and clean the filter...