Karl Townsend wrote:
If you can access these parts out of the system, and since it's
non-potable water, I'd look at a coating like those made to coat
inside a gas tank.

Do you have a name. Need more direction to know what to order.
I'd to order it yet today.

Karl

Check out POR 15 , they have several products that might work for you .

--
Snag
"90 FLHTCU "Strider"
'39 WLDD "PopCycle"
BS 132/SENS/DOF