Recent content by engrav

so only choices are 1) ignore couple inches surface ice 2) turn on heater 3) keep surface churning with eyeballs aimed up there is no other choice for a few days of sub zero?

Thank you. Pipes and all are below freeze level or indoors. Am just discussing couple inches on the surface over a period of a few days. Solar bubble won't stop that?

Is it not true that some bubble "solar" covers will save enough degrees to prevent freezing?

Hi. Don't close pool and don't cover pool cuz live in Seattle. But... From time to time a few days of freezing weather and the pool is iced. Usually just ignore it but am thinking would like to put on a cover to prevent the icing. Should be easy on easy off since I am old and likely put on...

So called 'em. Said if temp water and temp probe grossly different strange things happen. So if water 40 and probe 68, put probe in water and let sit for couple three minutes. So I did that and voila. Colorimetric was 7.6 with old eyeballs and pH meter was 7.61. So issue solved. Gotta let 'em...

again, if I keep stirring for a half minute or a minute the temp rises, then stops, from about 7.3 to about 7.9; and the 7.9 is dead on with the old calorimetric method so I think the final is accurate we are talking 40degree water with jar and probe at room temp; maybe the glass, water, probe...

thanks all, nice video today I did pH with the old calorimetric method and read 7.8 then used the device, same thing, first funny face at about 7.3, but kept stirring and pH went up to 7.9, then stopped changing with another funny face can only conclude to match the calorimetric method gotta...

thanks, can do while waiting saw this, see screenshot, suggests changes too small to worry about but my change from 7.3 to 7.9 is much larger

Been a while but with same pool same equipment same chlorine method not lots to discuss but now Have Apera pH meter. Is cool, more fun than color matching with 82 year old eyeballs but... Water is cold, like 45. When I first put the meter in I might see 7.3. After sloshing around for a minute...

nope, CSI fix in cold weather as in the other post

Hi. True. Out here goes like this. Air temp and water temp say 40. Then is 24-48 hrs goes to air temp and water temp 30. At water temp 30 CSI is below -.3. But this only lasts a few days and as pointed out above, < -0.3 for a few days can just be ignored. And turn the eyeballs up but if...

thanks 1 and 2 disposed of

thanks puzzle 1 solved puzzle 2 in 11 years I have never put in any borax, is there any reason I should be doing some borax

thank you not worried about anything previous posts for this problem resulted in a plan which is 1) aim eyeballs up 2) have a beer so issue solved but two little puzzles (to me) remained