Cleaning the a/c lines

i have 2 mermaid ac's, they are a great company and i would suggest giving them a call talk to their service and let himm suggest their recommended way. they may suggest other things that could be affecting performance
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Hi,

I don't know of any cleaner that will dissolve silt overnight.

If you can reverse the water flow and backflush the system that will be a start.

The loss of efficiency of your system may be owing to a number of different things.

Your gas might be low.

If the water temp from where you got it from to where you have it now is way different this can also cause operational issues.

Any of the commercial cleaners I am familiar with that are used in AC Coils etc are designed to be pumped around and re circulated not left overnight.

Trac makes a good descalination fluid, you'll have to pull the a/c discharge and get a pump and a 5 gallon bucket and pump it in a circle. But the Trac stuff is what most people are using these days. Just follow the directions on the bottle.

I back flushed mine last year with a hose, (not full pressure)

some awful stinky black gook came out and the ACs were a lot colder for the rest of the season, I have to do it again this year

Triton Marine makes an AC cleaner, said to be environmentally friendly, for this exact application... either let it stand for a while or recirculate...

-Chris

Descaler

Hi,

Try back flushing before you buy the descaler.

Descaler will not remove grass, plastic bags, Impeller parts,silt or sand

This stuff:

Cleaners: Triton Marine A/C System Flush - De-Scaler, 1 Gal.

Don't know that site, it was just the first useful search return.

I think the website you went to probably isn't the same folks, but I can't remember the punctuation on John's URL. (He's a member of our owners club.)

Edit: Found it: http://www.tritongreen.com/marine.html

And I note it's not the clearest website in the free world. If you go to the Products page you'll see AC and Engine flushes as separate products. If you go to the Engine Flush page it talks about both AC and Engine at the same time. I suspect best to call 'em to order... and while you're at it, suggest they update their website

Pressure flushing helps, too. Either by temporarily removing hoses from the pump outlet so everything discharges nicely... or by backflushing from a thru-hull. Latter works best of you have multiple discharge thru-hulls on one system, so backflush through one outlet will discharge from the other outlet.

-Chris

-Chris

My seawater side is filtered thru groco baskets. Would I still need to back flush? Never done it.

If particles of sand.silt etc are smaller than the holes in your filter screen they will pass through.

Our installation is probably similar: raw water enters thru-hull, passes through a sea strainer, on to the AC's water pump, from there to two different ACs, and finally out two different discharges.

The sea strainer doesn't fix everything, in our case; we still have to flush the lines between AC water pump and discharges about once/year.

Your situation depends on your environment...

-Chris

thanks fellas,

I'm going to give it try when I get the boat back from its Man 1500 hour $ervice. I have three separate sets of pumps and lines.

I'll see what comes out of each?