Pool chemistry and New Installed Heater Cu.Ni metallurgy

[frankbk]

Recently added Raypak heater PR266A-EN-X to pool system which is supposed to be more forgiving for pool chemistry excursions. Manufacturer’s generic recommendations indicate my clear pool is low in Ph and high in FC.
Current test (TaylorK2006C) readings are Ph7.3, FC 10, CYA 100, TA 125, CH 250.
First, Does anyone have experience with this type of heater?
If I have to adjust chemistry any suggested first alternatives to a drastic reduction of pool water volume, to get CYA under control?

 

[mknauss]

If you try to follow a manufacturers chemistry recommendations you will be beating your head against a wall.
Only two parameters that really matter for a heater is pH and to some extent, CH. Your pH is in the 7's, that is fine, and your CH is 250, that is fine.

FC has no effect on heaters. Your CYA is high (did you use the dilute method to measure that?) so you will need to run your FC at the current level if not a bit higher. Once you confirm the CYA level, a drain and refill is needed.