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Thanks ajw22 and JamesW. We moved in this house last summer, and the previous owner said it was built with the house (2001). He did not mentioned the plaster been replaced (he just live in the house for the last 3 yrs). Will check the water level. Thanks again.

I am in central Texas and just experienced historical low temp in the past several days. The pool equipment looks fine although we are cut off power every several hours. Today I found that there is a crack in the bottom of the pool. I am pretty sure there is no crack before the storm. Will the...

Thanks! I figured it might be the bearing’s issue. It’s kind of challenging for me to replace the bearing. Just want to see if I can exclude some other simple possible cause before bring it in the pool store.

Just moving the house with pool a few weeks ago, previous owner left the Polaris 360 to us (he said about 3 yrs old). Have another old Polaris 360 in the garage ((before the newer one, I guess). Anyway, I found that the Polaris 360 wheel turning very slow (It always like that since I moved in...

ajw22, Thanks for the advice. The return valve IS on off position. When I put it to ON2 (suction valve is on ON1), seems working great! We are testing the heater, and the kids are waiting the SPA to warm up, I estimate it will be 30 min. Thanks again. Haidong

Good afternoon. I am a new pool owner (moving to a house with pool). Join this forum a few weeks ago, and got my water balanced. Thanks! Here is my control panel indoor Here is my controller near the pump. Here is the natural gas heater control. Now during the normal operation of the pool...

This morning, I did the weekly test: FC: 3.5 CC: 0 PH: 7.5 TA: 60 CH: 250 CyA: 30 It is really hard to draw a clear line on the CyA test, in around 30, I still can barely see the black dot, so I am not quite sure about the result, but I am confident it is between 20 and 40. Should I add some...

Wow, what a history! I am glad you finally got it under controlled.

I think so. CC is always less than 0.5 during the process. Overnight FC loss is 0.5 ppm. Water is clear and no visible algae.

Last night at around 9pm, I tested the FC to be 14. This morning, I tested it to be 13.5 with CC at 0.5. I guess it passed the OCLT. So I let the chlorine level drop down to 8ppm at around 6pm (still higher than recommend level, so no LC tonight).

Another test at 7pm FC: 8 CC: 0.5 Add chlorine to bring FC to 16. Busy on work and kids' preparation for school, wait too long to do this test.

Glad to hear that it works for you. You are in Houston, may I ask why you drain/refill the pool every year? I just took a picture with pool light on.

You are right, I actually ended up adding twice acid to bring the PH down to 7.4

Another test at 12pm FC: 11 CC: 0.5 Add chlorine to bring FC to 16. The Texas sun burn 5ppm in 4 hr with half pool under shade. Expect to lose more in the afternoon...

Yes, the kids won’t agree if I don’t let them swim. Did another test this morning before sun rise. FC: 13.5 CC: 0.5 add some chlorine to bring the FC to 16, and brush the pool side (forgot to brush last night).

Began the SLAM late afternoon. Here is the results after 30 min pump run (at around 7:30pm) FC: 17.5 ppm (SLAM level is 16ppm based on CyA at 40) CC: 0 to 0.5 ppm (very light pink, one drop change to clear) At around 9pm, did another test FC: 16.5 ppm CC: 0 to 0.5 ppm (very light pink, one...