Graco Head

[freightdog]

I have an older HF series Graco marine head. When it is not is use, is there an special solutions, liquids, etc. that should be added to keep all the components in working order? Thanks.

[dshafer45]

I always leave some vinegar in the system when closing up the boat. Also use mineral oil periodically for easier pump operation.

[freightdog]

I've heard of using vinegar, but what does it do for the system?

[dshafer45]

disolves mineral deposits and keeps the system clean.

[jackytdunaway]

i have to take the pump apart now and then to put vaseline on it. Would putting some mineral oil in the bowl now and then take care of this?