Recent trouble of iron in toilet tanks.
After much work I believe the problem may have been the water heater!
Flushed much rusty sediment from water heater.
Also flushed my two retention tanks.
Topped off chlorine injection tank.
So far no morning pulse of iron or air.
Other trouble includes pot perm not drawing on either kat tank.
Replaced seals and piston and cleaned kat1, no luck.
Replaced seals and cleaned kat2, no luck.
Will order new injectors.
Need to confirm programming times after this work.