Originally Posted by Seabound
Help - I'm getting these hard white crystal like deposits coming out of my fresh water tank and clogging the strainer of my fresh water pump. Somebody told me it was most likely calcium deposits inside my tank. Does anyone know how to get rid of such a thing?
Folks I think you may have the cart in front of the horse unless this is a different kind of system!
Seabound states as you see above the material is in the strainer to his pump. The strainer is usually between the potable water tank on the suction side of the pump with the hotwater heater etc. downstream on the pressure side of said pump. I am not aware of a system the pulls the water through hotwater heater.
He goes on further to say that he believed " it is a stainless steel tank. I am not aware of any access port to the tank (it's really buried on the port side). I've tried draing and flushing the tank several times but the problem persists. It's like it is really crusted up in there
The tank material has not been confirmed for sure (from what I have read so far in this thread)and all of this has the signs and symtoms of what is a normal process with aluminum
as they age and have internal corrosion
and is more pronounced in older tanks. The material is probably aluminum
chloride hydrate. It is not toxic but a mess to remove. You will have to cut an access and clean the inside of the tank. We used a wet vac and a brush on a recent refit
of vessel with 25 year old aluminum tanks.
I would suggest that the tank material be confirmed before you go dumping a bunch of stuff into your tank and water system.
I can post some photographs later of the interior
of a tank I am speaking of if anyone is interested. Just PM me.
Hope this helps and a Happy New Year to all of you,
ABYC Master Technician