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Potable Water/Raw Water Interconnect Modification
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Potable Water/Raw Water Interconnect Modification
The modification is to install a connection between the pressurized side of the potable water system and the pressurized side of the wash down pump. Using a solenoid valve and a filter to remove sediment and a few T connections is all it takes. This is the same connection all boats use to interconnect dock water to the potable water system except now it will be the washdown pump circuit.
Will add a 5a breaker in my panel to energize the solenoid just below my water pump breaker as this one needs to be off and visa versa when deactivating it. If I want lake water, turn off water pump breaker, turn on solenoid breaker, done deal.
This will work well for us as our boating waters are fresh water and almost drinkable. The idea is to use the feature when away from port for several days knowing we will probably run out. Will activate it when we take showers and maybe when we do dishes, the idea being to use less water from the tank.
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
This is the breaker I am using. https://www.ebay.com/itm/NEW-Blue-Sea-7 ... 2749.l2649
This is the water filter I am using which is available on Amazon USA for $26 or Amazon Canada for $60 . the nice thing about this unit is it takes standard 10" x 2 1/2" filters which are dirt cheap. The unit for the application is perfect as the filter is 50 micron which is fine but not so much so as to block to quickly. I see no reason why I would need to change it out during the season but do plan on doing so each spring. There is already a strainer on the wash down pump intake so this will take out the bigger stuff before it sees this filter. The unit comes with no less than 3 cartridges which should keep you going for 3 years. The filter also incorporated a built in bypass valve in the head which is convenient for bypassing, or turning it off manually as can be seen in the picture.
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
The white thing beside the water tank tucked in there is the check valve. Mounted it close to where I interconnected to the potable water system line only about 6 inches away. This way when not in use there is no pressure from the potable system farther down the line which would pressurize the filter, solenoid and other connectors downline. Not that this is a problem as they are designed for this however it is always a good idea to not have them pressurized.
Picture of mounted filter/solenoid. Mounted to a piece of 2x8 glued to the bed frame fiberglass. Stainless custom made mounting bracket secured to 2x8 with 4 screws which makes for easy filter changes and use of built into the top filter/off/bypass valve. Winterization should also be a breeze.
Need to do a final leak test as I obviously need to be in the water to activate the wash down pump other wise the installation is complete.
Will post a picture eventually of activation breaker in the DC panel.
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
AGAIN I WILL MENTION I AM ABLE TO DO THIS BECAUSE OF THE CLEANLINESS OF THE FRESH WATER WE BOAT IN. I DEFINITELY DO NOT RECOMMEND THIS IF THE WATER YOU ARE IN IS POLLUTED OR IN SALT WATER.
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
- RGrew176
- Admiral
- Posts: 6195
- Joined: August 17th, 2015, 4:07 am
- Vessel Info: 2022 Stingray 182 SC
- Location: Southgate, MI.
- Has thanked: 72 times
- Been thanked: 462 times
Re: Potable Water/Raw Water Interconnect Modification
2022 Stingray 182 SC
2004 Past Commodore
West River Yacht & Cruising Club
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
- pepmyster
- Admiral
- Posts: 961
- Joined: June 5th, 2018, 7:17 am
- Vessel Info: 2004 Carver 360 Sport Sedan
8.1 Volvo Penta
Fresh water boating - Location: Ottawa
- Has thanked: 433 times
- Been thanked: 187 times
Re: Potable Water/Raw Water Interconnect Modification
- Midnightsun
- CYO Supporter
- Posts: 2831
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 253 times
- Been thanked: 1093 times
Re: Potable Water/Raw Water Interconnect Modification
- daveS
- Scurvy Dog
- Posts: 44
- Joined: August 12th, 2017, 8:36 am
- Vessel Info: ☀️Sanity Sol☀️
1999 350 Mariner - Location: Penetanguishene, Ontario
- Has thanked: 24 times
- Been thanked: 8 times
Re: Potable Water/Raw Water Interconnect Modification
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