After several days of research here on TFP, I've decided not to drain my pool and try the bleach method of saving the water. My plan is a bit suspect to start. My current DE filter is old and tired and blows DE out when vacuuming. I have already received my new filter (Hayward Star Clear cartridge C12002 ) and plan to install it after I get the water to a better state. I would rather let the old filter get totally impacted than chance overloading the new filter with all of the debris that is currently in my pool.
I started by dumping in 2 gallons of 6% bleach, skimming and brushing. I don't have a high quality testing kit, just the cheap 3 way KMart kit. I'll get a better one at my Local Pool store Monday (any suggestions for a proper kit). I have a Leslie's Pool supply and a Sky Blue Pool in my neighborhood. I think that 2 gallons was a bit much but I could not see 1 inch down throught the algae, dirt and debris. I'll see how the levels go over the next two days before I add any more
Initial tests show:
Ph 8.2 +
After the first 1 hour the pool had already gone from chocolate brown to cloudy green brown. After 3 hours the water had changed into a cloudy and murky blue. I could not get pictures as the light was already gone. If I get the test kit I'll check to see what the Chlorine levels are.
20 year old 48 sf hayward DE filter, soon to be switched out
1 Hp pentair pump (2 year old)
some where between 9600 - 10200 gallons (depends on which formula for size and volume)
in ground Sahara pool with raised spa and spill over waterfall.
Keep you posted on the progress.