8000 gallon above ground, sand filter
fc4
ph7.8
ta210
ch220
cya60 (test strips)
any suggestions? cya measured by strips because my cya test tube was received faulty and leaks
fc4
ph7.8
ta210
ch220
cya60 (test strips)
any suggestions? cya measured by strips because my cya test tube was received faulty and leaks