Recent content by nicjamaica

30 days on the new liner. FC 4.0 CC 0 pH 7.8 TA 80 CYA 40 The pH seems to drift upward from the targeted 7.5 to 7.8 or above over 4 or 5 days. The return jets make significant swirls in the water but don't typically break the surface. Could this be responsible for the increase? The MA doses to...

Will do. Dichlor or bleach, does it make any real difference at this stage? I'm accurately tracking all Dichlor applications and adding the CYA bump to a running total.

I lost slightly more than 1ppm FC last night. Assuming 9.5 CYA from the previous Dichlor (44oz into 17,500 gallons) should I target 6 for the Chlorine Shock value? I seem to fall below the CYA/Chlorine chart.

Is there any meaningful correlation between filter flow rate into the pool and backwash flow rate or the Rinse flow rate? On Filter setting the gauge indicates 19psi, on Backwash the gauge indicates 10psi and on Rinse the gauge indicates 10psi (Waste shows a barely moving indicator bouncing off...

Day 4 FC 3.5 CC .5 TC 4.0 pH 7.5 TA 90 CH 100 CYA Not registering yet. Having added 44oz of Dichlor at this point (over 3 days) it should eventually test at 9.5. Any cause for concern with the above readings? Does it make sense to add the 16oz CYA at this point (via sock method) to boost the...

New to this Forum. Bleached out a 2 year old liner with a massive Trichlor+CYA assault last year. Never again. New vinyl liner just installed and filled with city water. Just fired up the pump and backwashed the filter (new sand last year). Holding 19psi with great flow. Waiting on a...