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Old 08-31-2018, 03:00 AM   #1
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Default dewinterize boat in water help

can someone help me with dewinterizing the boat, flushing the anti freeze out of the system, I am putting my boat in the water tomorrow


1. Open Raw Water inlet, run the the blower, start the engine.

2. A/C open the intake valve, check for voltage, start the blower then run start the AC

3. Toilets, Open intake valve, hold flush button and look for water.

4. Fresh Water System, Put about a gallon of water in the tank, turn on fresh water pump open the faucets (do i open all faucets including showers?) let the air go through the system let it run to all the water is out.

Fill the water tank completely then open faucets again let it run for a bit.
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Old 08-31-2018, 03:08 AM   #2
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It would help if we knew what type of boat you had. I'd fill the fresh water tank half full and purge it... then fill half full again and add bleach and purge again... Open all faucets.
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Old 08-31-2018, 12:28 PM   #3
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As Phillbo said it will take much more than one gallon in the fresh water tank to purge the system. Other than that you got it other than first charging the batteries and connecting them if they were disconnected for the winter.
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Old 08-31-2018, 12:37 PM   #4
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Don't forget to clean (or replace) the filter on your fresh water pump before you do anything with your water lines.
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Old 08-31-2018, 01:06 PM   #5
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Quote:
Originally Posted by jimq26 View Post
Don't forget to clean (or replace) the filter on your fresh water pump before you do anything with your water lines.
Thanks, wouldn't have looked that
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Old 08-31-2018, 01:07 PM   #6
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Quote:
Originally Posted by Phillbo View Post
It would help if we knew what type of boat you had. I'd fill the fresh water tank half full and purge it... then fill half full again and add bleach and purge again... Open all faucets.
Really? You do it again with bleach, that's interesting
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Old 08-31-2018, 01:35 PM   #7
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His profile advises that this is his boat - 2000 Maxum 4100 SCA
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Old 08-31-2018, 05:54 PM   #8
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The easiest way to displace the propylene glycol from the tank is to fill it about 1/4, then run all the faucets. Then repeat until the lines run clear. Then fill the tank. If you're seeing a scum line in the tank or the water smells funny, then throw a cup of bleach, fill the tank. Run until you have some bleach water in the lines. then let it sit for a day or two. Then purge th system. Fill 1/4 then purge again, then fill.
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