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Old 31 July 2007, 17:13   #11
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Muriatic acid (which is a dilute form of hydrochloric acid) is used for cleaning/descaling brickwork as it dissolves lime and calcium.... works on barnacles too especially if you kock the caps off them with a scraper first

Just beware 'tis not nice stuff so all the usual safety precautions are a must..............
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Old 31 July 2007, 18:04   #12
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Guessed it would be HCL - I tried to buy some but all my local chemical comapnies have a minimum order of 100 - any ideas where I can buy say 25l of the stuff???
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Old 01 August 2007, 01:22   #13
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I haven't used it for a long time. Try local builder's merchants (as it is used for brick cleaning and also is the stuff used by plumbers to descale your boiler ) or better still you can usually get it from Swimming Pool supplies outlets in reasonably small quantitites.
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Old 01 August 2007, 12:37   #14
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Acid ey. Not heard of that one before. I spent about an hour and a half with a friend cleaning barnacles and slime off my hull this afternoon. Not something I wish to continue doing on a monthly basis. I'm either going to anti foul or put some other magic formula on when I take it out next month.

How easily does the nasty stuff come off with acid then? Is there any scrubbing required or just a rinse?
Took me about 1/2 an hour or less to do the entire job on my own. Spray on leave about 5 - 10 mins and wipe off with a deck brush. Check you haven't missed any where and a quick second spray on those spots. No real elbow grease required. It takes off the green slime, brown slime and that black stuff which is usually a BUGG*R to shift. Just don't leave it on your tubes for long as I am not sure what the result would be. I always do mine when it is on the beach but the tide is on the way in.

Only other word is over time is will also eat away your spray gun but they are only 20 in B&Q.

Ian
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Old 01 August 2007, 14:24   #15
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Guessed it would be HCL - I tried to buy some but all my local chemical comapnies have a minimum order of 100 - any ideas where I can buy say 25l of the stuff???
The local Machine Mart in Portsmouth sells it in 5 litre containers. Can't remember the price but wasn't expensive.

Pete
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Old 01 August 2007, 14:30   #16
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Ok guys.

I feel like an idiot now. Finally tides and work let me get on the beach to properly check the state of the weed growth it was horrific. Took 2 containers of acid to wash it off (nice stuff to work with - make sure you wear old clothes). Took her out a hey presto almost all my lost speed returned.

So anyone with a moored boat not antifouled heed my warning and check the weed growth more often.
Unfortunately on the way bak in I developed fuel probs so I now have to work out if I have a blockage somewhere, water in the fuel (have a filter on BUT) or pump problems. Ah the joys of owning a boat .

Happy ribbing
Ian

I am surprised at the amount of people on this forum who keep their ribs on moorings but do not anti foul their hulls, surely they should understand the consequences will be loss of speed, combined with the inevitable job of cleaning off the hull.
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Old 01 August 2007, 17:10   #17
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The local Machine Mart in Portsmouth sells it in 5 litre containers. Can't remember the price but wasn't expensive.

Pete
Didn't think to check them. There are "proper" marine barnacle removers but of course they are silly money!!!
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Old 01 August 2007, 17:12   #18
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Took me about 1/2 an hour or less to do the entire job on my own. Spray on leave about 5 - 10 mins and wipe off with a deck brush. Check you haven't missed any where and a quick second spray on those spots. No real elbow grease required. It takes off the green slime, brown slime and that black stuff which is usually a BUGG*R to shift. Just don't leave it on your tubes for long as I am not sure what the result would be. I always do mine when it is on the beach but the tide is on the way in.

Only other word is over time is will also eat away your spray gun but they are only 20 in B&Q.

Ian
Don't worry about the tubes - Hypalon is very acid resistant - they make gloves for the chemical industry out of the stuff!!!
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Old 02 August 2007, 02:03   #19
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I am surprised at the amount of people on this forum who keep their ribs on moorings but do not anti foul their hulls, surely they should understand the consequences will be loss of speed, combined with the inevitable job of cleaning off the hull.
I couldn't agree more!!

This lot refuse to antifoul, and yet will don protective clothing, gloves, masks etc and then lie on the ground in a muddy harbour, scraping the hull and spraying it with concentrated hydrochloric acid!!!

Tens of thousands of pounds worth of supposed "pride and joy"!

They are MAD!

But still, I suppose it give us yet another thread to listen to their crazy chemistry experiments.
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Old 02 August 2007, 02:15   #20
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Don't worry about the tubes - Hypalon is very acid resistant - they make gloves for the chemical industry out of the stuff!!!
Thanks codders.

That puts my mind at greater ease.

Ian
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