Recent content by UaVaj

currently using a taylor k1000 for FC and PH. TA, CH and CYA are tested at the local pool shop. need new kit for testing FC beyond 5.

beside muriatic acid which is used to drop the pH. only thing that gets added is 10.5% liquid chlorine from the pool store.

Re: normal pH due to region/climate did not post up current pH value cause it is irrelevant to the question. however pH value is well kept between the accepted value. as for the "B" - it is for borate level. as for the CYA level. like to keep HOCI in the blue. back to pH. like all...

14 y/o ~30k gal 20x40 outdoor in ground concrete pool. FC = 5 CYA = 20 TA = 100 CH = 250 B = 0 pH is constantly creeping upward - even when there is zero pool activities. thinking this has to do with the climate in southeast florida here causing pH to naturally rise. what gives...

ez patch seem to be nothing more than over priced hydraulic cement with a pool labeling. would consider paying such premium if it was color matching. 3lb of hydraulic cement for $43 is nuts. similar stuff at home depot is $6. will try the food color test in the next few days to confirm...

clearly the MATH does not add up? I. per the HOCL chart CYA 0 and FC 1.0 = HOCL 0.484 to maintain this "same" level of HOCL with CYA 30. FC would have to be at ~15. here is the check. per the FC Chart CYA 30 and FC 15.8 = HOCL 0.500 II. at CYA 30. Chlorine / CYA Chart for non swg...

so chem geek is richard falk. nice to put the two together. he is definitely an expert. always have to read his post 2 times to start to sink in. very detailed info. question. the state board health department minimum FC is 1 (with CYA 0). that would mean minimum active HOCL is 0.484...

found this HOCL level breakdown. https://www.troublefreepool.com/~richardfalk/pool/HOCl.htm this is exactly the info I am looking for. can you experts validate this. thanks.

standard 20x40 in ground concrete pool has a foot long 1/32 hairline crack in one of the corners starting from the water line down. losing about an 1" per day. this is more than evaporation alone so it could be leaking. * what product/method is used to repair this? lowering the water level a...

can someone link (no luck googling) or explain the relation between free chlorine and cyanuric acid. FC is the sanitizer. for sake of easy comparison. let give FC has a sanitizing power of 100. control group. with CYA at zero. FC will obviously have its full sanitizing power of 100...

found a very nice calculator and it "verified" the calculations. http://www.centuryelectricmotor.com/applications/twospeed.aspx regarding the math. the longer the run time. the bigger the savings. folks running 24/7 will see the biggest difference. however at that spectrum. you are already...

amp numbers in calculations are from manufacturer spec sheet. given the simple task of - 30,000 gallon filtration with 2 hour of vac. 1/2 the water for 1/4 the power - is simply NOT adding up.

there are some 1-speed vs 2-speed thread with excellent info, however this thread is for the expert to check my math. INFO SPECIFIC * pool is 30,000 gallon. filtration target is a 1 turnover per day. vacumm target is 2 hour per day. * pump is a hayward super pump. with a 2HP motor and with a...

looking to setup the plumbing for a back flushing a cartridge filter. have anyone done so? what were your results. upon inspection of the cartridge. during normal flow. the cartridge does have a hard plastic backing on the inside of the cartridge. that is probably what keeping the...