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I have a black algae problem and so I raised the chlorine level to combat it. However I forgot to test the CYA level. When I did it seems to be 0 (not a test I have a lot of faith in). The CYA manufacturer recommends a chlorine level of 1-4 before beginning. Is that really necessary? If so I...

I am getting my pool tiled. Which surface should I use on the Pool Calculator? It doesn't list tile.

I have an old 10500 gallon pool. I live in Hawaii and the plaster is in bad shape so it take a lot of chlorine to keep it clear. My circupool rj60 swg is on its last legs - starting to leak and I can't reprogram it easily. What would be a good replacement. I saw the calimar titaninium at a great...

Recently had problems with module's time being thrown off several times a week. After a while, realized it was overheating (saw it happen) and turning off and messing up the time. I cut back % from 60 to 40 and it is still overheating. Any ideas? pH 8 FC 4 CC 0.5 TA 110 CH 400 Cya 40 Salt 3330...

I live in Hawaii so have high electric prices. I would like to buy a variable speed pump but don't know if it can be connected to my older intermatic control. Right now I have a filter, cholorinator, and a pool sweep connected to it (all made by different companies). If I have to buy a new...

How should you dispose of out-dated pool reagents? Pour it down the drain? Wait for a hazardous material drop off day?

I consistently get much higher readings with the fas-dpd method as compared to the dpd or strip methods. For example: fas-dpd dpd strip 6.4 2-3 2-3 5.6 2-3 2-3 Is there a reason for this? Should I check my reagents? Mahalo

I just installed a Circupool RJ30. How can I figure out if it is putting out the amount of chlorine it claims to? I have a 10,500 gal pool. I thought I would be able to run it at a lower % and shorter amount of time since it is for a 30,000 gal pool. That isn't happening. I have been continually...

Honolulu, HI 10,500 gal Hayward S244T sand filter GPM/FT 20 3/4 hp PAC FAB Challenger pump IG plaster Pool Pilot ST 220 SWG FC 8 high due to fighting black algae pH 7.6 TA 90 CH 400 CYA >100 trying to reduce over time (black algae came 1st) I have several questions but will start with SWG...