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You are right, mmirav! I am trying to fix the leak to the light housing itself. So, cord stopper is not the right choice. No wonder I could not find a way to install it :) Epoxy cures hard and the movement of the cord is going to break the seal, right? I will try to use silicon caulk to seal...

Hi OldPoolMan, Good that you had hands-on experience with cord stopper. I attached a picture of my pool light in the original post. Do I remove (slide up) the original cord stopper (highlighted by the red pointer) and push in the new cord stopper? Thank you!

My pool light is leaking, very possibly thru the conduit where the light cord enters at the back of the light niche. I found this cord stopper that can fix the leak without messing with epoxy: Cord Stopper for Underwater Swimming Pool Lights - PoolCenter.com However, I can't find any...

I removed my pool light last weekend and found excessive calcium build up in the light niche. I was able to use a screw driver to break off a little, but not much. What's a good way to remove calcium buildup underwater? Also, do I have to remove these buildup in the light niche? Will it slowly...

Thanks for pointing out my mistakes. I will start the SLAM first with FC up to 28 (based on CYA=70) and maintain the level until CC<0.5 and pass OCLT. Also metal brush often during the period. A couple more questions: 1. Based on the fact that the yellow-greenish algae did not reappear in 3...

My salt cell went bad and I had several weeks of time with close to zero FC in my pool. First I got greenish/yellowish algae covering the deep end of the wall and floor. I was able to brush it off with vinyl brush. But the algae came back in a few days. In my pass two weeks, I start to notice...

twoolley, can you let me know how to remove the weir/flap from the skimmer housing? Just pull out or there is pins to push in? I have the same skimmer and need to replace the weir. Thanks.

Thanks Richard. I've put in acid and bleach to get the PH=7.4 and FC=3. Will get the stabilizer from Pool Time Chlorine Stabilizer today to increase CYA. Is CH=190 too low for plaster pool as the recommended range being 250-350? Should I bring up CH now or wait until after I add CYA and salt...

My old water CH = 950 and I replaced 80% of water yesterday and refilled the pool, water looks clear. Now the test results: FC = 0.4 CC = 0.2 pH = 8.0 TA = 160 CH = 190 (Taylor test kit turned from red to purple at 170, a little blue at 180 and a little more blue at 190 and totally blue at 200...

I am going to drain 75% of the pool water this weekend. I am wondering if I can chlorine wash the spa and shallow half of the pool to remove some of stains. I have some 6% house hold chlorine at home, should I go get some 12% chlorine to do the wash? Also, is it safe to not pump out all water...

I can either get the JB WaterWeld or the original JB Weld that come with 2 tubes. I have pool drained to below skimmer now, so I can use either one. Which one is better?

I found JB Weld at home depot, is JB Weld the same as 2-part epoxy? It works on fiberglass, PVC plastic and metal. How do I tell if my skimmer PVC is plastic?

got rid of the previous putty and found the gap is fairly big, a little bigger than the thickness of skimmer wall. Can epoxy hand the wide gap like this?

I will try the V-C tab method this evening. I have some V-C tab at home, but they are not chewables, can I use those? A single pill tends to move at the bottom of the pool even without pump running. What's the best way to stop the movement? By the way the pool water's CH value is approaching...

I am first time pool owner. There were lot of leaves at the bottom of the pool when I bought the house, the water is clear. I vacuumed and brushed the pool multiple times but could not remove those stains. They are dark (black) in color. Can anyone help to identify the type of the stain and...

The upper part flex a little, I can push it in with a finger a bit. In this case, can I still use 2-part epoxy to seal the crack?

took a picture of the crack. Looks like the crack was caused by concrete/soil movement. In this case, can I sand off the white putty and seal it with silicon sealer? How long will silicon sealer last under water?

I have a crack inside the skimmer wall. The previous owner repaired the crack, I can see white putty like material along the crack line. The skimmer is leaking now again. I searched the board and found out that I can repair the crack with 2-part epoxy. My question is that how do I figure out if...

Just did a test with taylor kit. CH=800, CYA=160. Since I have SWG, the target CYA is 70-80 according to pool school, right? I also tested my tap water, CH=150. Should I replace all water and bleach my pool or should I just replace enough water to get my CH in 250-350 range? I used Pumas stone...

I got the test results from Leslie Pools. They used test strips. I've also tested out my tap water using Leslie's test strip, CH seems to be between 100 and 200 and pH is a little above 8. I cleaned cartridge filter and salt cell couple weeks ago. The salt cell was scaled pretty badly, I acid...

Thanks for pointing me to the map. I could not find well location close to my house. I will check with local pool service shops for advise of ground water level. The deep end of the pool is about 6'. I read there might be a hydrostatic valve in the main drain to relieve ground water pressure...

I am new pool owner in Fremont, CA with some questions. I have a 16000 gallon, plaster, in ground pool with SWG and solar heat. Test results first: FC=4 Tc=4 pH=7.7 TA=180 CH=1000 CYA=200 Do I have to replace most of my water to lower CH? If so, do I need to hire a pro or it's a DIY job? It's...