I need your help!! We have an 22,000 inground pool that's 9 years old that has an automatic pool cover. We opened it early on April 4th (six weeks) ago due to our mild winter. It was green and cloudy. We treated for algae with no result. Six weeks and several different treatments & over $1,000 later we have not improved at all with a TC level of about 0.6 and a FC of 0.0. Due to our TDS being up to 2,900 and no avail to getting the chlorine to hold we did 2 partial drains & fills (treating our fill water for iron at the time of fill). The chlorine demand prior to & after did not change. We've been running our automatic chlorinator wide open and the filter and pump none stop. We've done several separate shocks in different intervals raining from 10 lbs burnout 35, 30 gallons bleach, 18 lbs burnout 3, and now today 85 lbs of burnout 3 (for a partially drained pool of only about 12,000 gallons water remaining). Pool place said to do another partial drain & either shock partially drained pool or when refilled with water (which we ran a sample of our fill water and it's chlorine demand is 0 and only has the iron to contend with). We drained & shocked with 85 lbs burnout 3 and 3 hours later tested & FC only 0.6ppm. We are at our wits end and don't know what else to do other than drain the whole thing which will cause the liner to pull away, replace the liner & then completely refill. We do not want to do this! But...we've done everything our pool place has told us to do, they don't understand why it's not improving & seem to be clueless! We need your help. Thanks for any direction you can give. Below are our current levels:
temp 78
sat idex 0.3
tds 1500
cya 100 (this hasn't gone down at all with any of the 3 partial drains & fills)
TC 0.6 (as of sample today BEFORE 85 lbs shock)
FC 0.0 (as of sample today BEFORE 85 lbs shock) (registered 0.6 after shock at home)
ph 7.4
total alkalinity 225
adj alkalinity 195
hardness 304
optimum not tested
copper 0.1
iron 0.3