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Rex Delay · 10-05-2010, 10:09

I just changed my Jabsco manual head pump with their new twist-lock. In the process, I noticed there is about a 1/8" scale in the discharge hose. Is there a safe, efficient way to dissolve it without damaging anything?

zeehag · 10-05-2010, 10:16

i use vinegar on a regular basis and havent noticed any ofmy boats having that problem....the scale in a friends boat was getting too thick to effecrively flush--vinegar did the trick--can be left in the system without ill effect....i also use salad oil for lubing--i reside aboard so it doesnt gum up....

MarkJ · 10-05-2010, 11:02

I don't thing it goes away. we have been replacing ours.

Smells much better

nautical62 · 10-05-2010, 11:22

Quote:

Originally Posted by MarkJ

I don't thing it goes away. we have been replacing ours.

Smells much better

I do the same for the same reason.

AnchorageGuy · 10-05-2010, 11:33

What you really need to do is take the hose off and beat it against a piling or a tree. All of the calcium deposit will break up and fall out. The only other solution is muriatic acid and that is scary stuff. And even the acid may not remove a build up. BTW, That build up will also be in your Y-valve and discharge seacock.

gettinthere · 10-05-2010, 12:18

Some of you are saying there is nothing that can be done...yet zeehag says she uses vinegar with good results.
Z, how much vinegar & how often?

AnchorageGuy · 10-05-2010, 12:21

gettinthere, Vinegar works well to keep the calcium build up down by flushing a cupful each week and letting it sit in the hoses for a few hours. But it will do nothing to remove already existing build up.

Vasco · 10-05-2010, 12:22

Cannot be done in place. Remover the hose, fill with muriatic acid, leave overnight, flush. The problem with the "beating" method is that all the crud sometimes forms a blockage in the hose and it's like bricks. They you'll have to take your pole spear and try to break it up. (Been there, done that).

MarkJ · 10-05-2010, 12:29

Quote:

Originally Posted by gettinthere

.yet zeehag says she uses vinegar with good results.
?

yes we use it too, but it wont clear 1/8 inch build up.

And Waterwayguy, yes we did that too... but it put fractures in the tube. So bash lightly!

Mark

AnchorageGuy · 10-05-2010, 12:42

Quote:

Originally Posted by Vasco

Cannot be done in place. Remover the hose, fill with muriatic acid, leave overnight, flush. The problem with the "beating" method is that all the crud sometimes forms a blockage in the hose and it's like bricks. They you'll have to take your pole spear and try to break it up. (Been there, done that).

And that is why I said remove it. Mark, you just need to beat it not kill it.

sailorboy1 · 10-05-2010, 14:26

I could sell you some of the industrial scale remover that I use in the water treatment world. How many 250-gal totes do you want?

trinescape · 10-05-2010, 14:30

we use to suffer from the calcium build up as well but since my ''head ''is above the water line when we leave our tri after being on board for the weekend i use the shower head and flush our system with freshwater i fill the bowl up twice and last time i checked no -build up ! but as stated i think this would only work with heads above the water line -perhaps another advantage of multi-hulls !!!!
andy