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You can shock without moving your cya up with either calhypo or liquid chlorine. If your calcium gets above about 450 I would just use liquid chlorine. A salt cell may be an option too depending on what automation you currently have and whether you want to spend the money to get that installed...

We just got our plaster done on our pool. It was quartzscapes with a quartzscape base instead of sand. I was trying to follow npt startup recommendations and asked my pool builder if I should add chlorine and cyanuric acid slowly. He said wait on chlorine until week 3. Current testing is...

Has anyone had any experience using frp for waterproofing behind tile? We are doing glass 1 inch tile for the waterline and spa spillover.

Can the commercial saline c6.0 be controlled with the residential Hayward hlbase somehow or will I just have to use manual mode on it?

I am trying to figure out how to install two swg’s in parallel or series and control them. I read in another post that you set one to 100 percent and then fine tune by running the other cell at whatever is needed to get the levels correct. I am using a Hayward Hlbase automation system with 2...

Does it matter that at 33gpm it will take almost 27 hours to fully turn the water in the pool?

I think the farthest is the main drain at 145 total feet not including added feet for 45s and t’s. The skimmers are closer than that and the spa drain is only 85 feet. I am planning on having the main drain and skimmers set to difference percent of total suction as was suggested on another...

For the suction side of things I had roughly 600 feet of pipe total between all the skimmers and drains etc. I included rise from 10 feet deep as well as added artificial length that 45s and T’s add To the system to get at my tdh number. I used the table found here...

I calculated it based on length and most the fittings required such as the 45s and T’s?and valves. I did not calculate it based on the heater or swg or any of those components cause I don’t know which ones specifically I am using yet. I am trying to get the rough in plumbing done. Are you saying...

The length from the pool house to the closest corner of the pool is about 60 feet. The pool length is 60 so to the farthest end of the pool would be about 120 feet. Also the area is fairly level so maybe only 1 or 2 feet higher to the pool house.

I am trying to figure out the suction side and return pipe sizes of my system. Total gallons in pool is 52k, I have two skimmers, a main drain, and a spa drain to provide return water to 2 Returns in the spa and 8 in the pool. I am considering the Tristar VS 950 pump and calculated with 2.5 inch...