How to best get sediment out of fresh water tank: IP 350 (1998)

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4 years 10 months ago #6776 by SpiritBear
The fresh water output appears to be partially blocked, the volume of water coming out of the tap has varied during multiple tank flushings. I have been trying to figure out how I can get into the tank and clean out any crystals or sediment that may be blocking the output line. Looking for ideas.

1) If the water has time to settle, the flow is better
2) A direct line from a water bucket to the pressure pump proved the pressure pump is okay. When the water line is connected to the water tank, it will slowly dribble.

I am thinking of going into the tank through the water level sensor. I do not know if it is a screw on or pop out.

I also thought about disconnecting the fresh water tube, remove the yellow plug, then rotate the aluminum square connector counter clockwise.

Any recommendations?
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4 years 10 months ago #6777 by gpb102030
Don’t know what this is is tank vent most likely to stern.
Air vent to sink if it is like my boat is for a manual faucet. I would try blowing into this if you make bubbles it’s not a vent but another pickup tube.. Then switch freshwater output hose with air vent to sink. See if you have full flow. If not pull out the freshwater output pickup tube ( square stainless connector) and I would bet it needs angioplasty. Hard white scale build up inside. The water tank sensor unscrews. This will give access to clean tank out I found my tank to have some crud but the pick up tube was the main problem. Hope this helps. Greg
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4 years 10 months ago #6778 by hayden
Tom:
That looks like a second tank vent line. I bet that is what it is.

As to cleaning out the tank, you could flush it a few times and maybe vacuum out the white particles via the full area. These white particles are from putting city water with chlorine into the aluminum tank. So, the solution is to use a charcoal filter on the hose every time you add water to the boat. Remove the chlorine before filling.

You can also add a water filter to the pick up line before your pump that will catch the crystals before they clog the pump.

The last thing you will be doing often if taking the pick up hose off and cleaning out the yellow fitting as it clogs with crystals often. The easy way to do this is to pull off the hose and put on a short piece then blow back into the tank clearing out the crystals in the pick up tube.

Best of luck, but this is common.

Hayden....off St Croix USVI

Hayden Cochran
IP35-165 Island Spirit
IslandSpirit35.blogspot.com
Rock Hall, MD

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4 years 10 months ago #6779 by SpiritBear
Thanks for all the help. I ended up duck taping my "Bucket Head" vacuum cleaner to the yellow connector, then sucking and blowing air into the tank. That did the trick. I was able to do 3 tank flushes. I have a water filter going into my pressure pump. It has those white crystals. This is my 3rd season. The previous owner told me to use one a chlorine filter on the incoming line (which I have been doing ). Lots to learn, thanks for sharing.

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