That's a workable plan but there's a downside to that. The algae lying on the floor is often not all the way killed and it is possible a lot of it can "hide" from the chlorine. I would rather see folks vigorously vacuum, catching what they can, but the remaining "junk" is then swirled up into the chlorinated water and it can be killed completely and then eventually caught by the filter.What I find is that when first opening for the year, after I kill any and all algae. I run the filter 24/7 as the pool is clearing the fine powder particles of dead algae. Over time it will all settle to the bottom. If I try to vacuum with my normal vacuum roller head then it stirs it up and clouds the water again. If I use a pvc pipe pushed into the end of vacuum hose and slowly hold it over the powdery dead algae, I can vacuum it up without stirring it all up. It is tedious and takes time but then the water stays clear. I am wondering if the automated vacuum is stirring up that fine powder dead algae and reclouding the water with each usage.
Even after passing the OCLT?That's a workable plan but there's a downside to that. The algae lying on the floor is often not all the way killed and it is possible a lot of it can "hide" from the chlorine. I would rather see folks vigorously vacuum, catching what they can, but the remaining "junk" is then swirled up into the chlorinated water and it can be killed completely and then eventually caught by the filter.
I have read many threads wherein people do not want to disturb the stuff on the bottom because their water will no longer be clear.......I believe it is best to disturb the water as much as you can and let your filter do what it's intended for.
You said the dead algae debris at the bottom could be comprised of living algae too. My advice on vacuuming in a manner as to not stir up that debris was for after the passing of the OCLT, signifying there was no organic material still living in the pool.I don't think I understand the question
I don't see any connection between OCLT and how to best get debris off your pool floor. please clarify
I think I understand better now. I wish the OCLT was rock solid scientific factual evidence that there was nothing living in the pool but it isn't quite. It's a pretty good indicator but not 100% absolute.signifying there was no organic material still living in the pool.
Stand outdoors with your back to the sun and hold the view tube at about waist level. If sunlight is not available, find the brightest artificial light you can.I followed the advice elsewhere on this forum to add the turbid solution to the 50 line, glance with direct sun on the vial for the dot, then fill to 40, repeat, etc.
Good to know. I don’t think it changes my conclusion. I actually did the test first exactly as you describe with the vial in the shade of my body. That photo with the vial filled to the 30 ppm level is attached. When I keep my back to the sun, but move the vial out of the shade of my body the dot is, of course, more visible.There should not be 'direct' sun on the vial. There should be 'indirect' sun on the vial.
Probably not (or shouldn't be, anyway) The 1 psi has always been a standard that seems to work pretty well. Doing a BUNCH more is problematic for sure so I would suggest not more than that one psi standard.Is anyone more aggressive with the use of DE
I've found a good way to judge is to look at the light at night. You can even take photos for the record. To do so, stand just behind the wall that the light is on so that the light itself is not visible, but you could see any halo or glow that is a few inches directly in front of the light. (I suppose you must have a certain pool geometry for this.) Then judge the size of that glow. That is the scattered light from particles right in front of the light. If the water is obviously cloudy this will look like a locomotive going through the fog, but I find it is sensitive to judging "how clear is clear" and it is one you can photograph rather than having to rely on memory.I think the "it isn't as clear as last year" thing is all in my head.