Head fresh water conversion

captlou

Member
Joined
Mar 27, 2012
Messages
22
Fluid Motion Model
R-21 EC
Thinking about changing head/toilet over to fresh water. Any tips or recommendations? Our vessel is a 2018 C28.
 
Raritan Marine Products makes a conversion kit. Did mine last year and am very satisfied with the results.

Greg Morales is the Chief Product Engineer and was very helpful.

Greg Morales
Raritan Engineering Company Inc.
530 Orange Street
Millville, NJ 08332

Phone: 856-825-4900 Ext. 256
Fax: 856-825-4900

Email: greg@raritaneng.com

Web: www.raritaneng.com
 
Hey just wondering your motivation for this?
 
This is from a previous post


Re: Converting CW 30 head to fresh water.
Postby BB marine on Fri Jan 25, 2019 10:18 am

I have done the conversion in my C-26 which should be the same has the C28. C-26 has a Raritan Sea Era QC head. I spoke with a Raritain technician about the benefits of the conversion, possible extended service of internal components, reduction in odor, reduction of scale buildup in the discharge hose to the waste tank. He advised me to convert. He looked up the part number 162CFI Sea Era QC conversion, Integral to pressure fresh water kit. This kit comes with everything needed to convert the Head, it was 119.00 + shipping. I removed the raw water supply hose to the head. I used the existing port in the sea strainer as a fresh water flush for my engine. The strainer is probably not the same used in the CW 28. I installed a Tee at the cold fresh water line going to the head sink. Directly after the Tee I installed a ball valve shut off for an isolation valve for the head system.( this isn't necessary I wanted it) ( A isolation solenoid is included in the conversion kit to eliminate cross contamination from head to freshwater system) The conversion was easier for me to install by removing the head ( 4 lag bolts screwed into the head floor, there is plywood under the floor that the lags go into) More wood below the water line! I didn't care for the trim job Cutwater did for the head plumbing. I rerouted the hoses and electrical and made a trim panel. The head installation done by Cutwater used up to much space in a very limited head area. I moved the head into the corner giving more space in the head and better hose installation. If I didn't do all the other changes the kit installation is an easy 2 hour install. If you have any Questions on the conversion PM me.

Rerouted plumbing and installed a finished panel for the bulkhead.






The Head moved, now faces the head door, increasing leg room and reduces the need to straddle the head while using the sink. I filled the holes with west system epoxied wood dowels and finished with color matched gelcoat obtained from Cutwater.
 
I just pull the shower head out from the sink and use it to flush the head. The only time the head pulls from the strainer is when I run potable antifreeze through the system in the fall. That antifreeze is still there the following year as the selector is always on discharge. Maybe that doesn't work with a CW?
 
Journey posted a question as to 'why': Can't speak to the OP, or others, but for how I use my holding tank, it's beneficial to use fresh water rather than salt water (for those who boat in salt, as I do) because I use a bacterial enzyme rather than the 'blue chemical' that many use.

Salt water would prohibit my bacteria from working properly. I have used bacteria for years in my holding tanks, and not only does it keep the head/tank from smelling... it also breaks down the 'items' in the tank, rendering the entire tank virtually smell-free! I especially love that part when using a pumping station... 😉
 
Journey":1kfarptu said:
Hey just wondering your motivation for this?

I spoke with a Raritain technician about the benefits of the conversion, possible extended service of internal components, reduction in odor, reduction of scale buildup in the discharge hose to the waste tank. He advised me to convert.

Fresh water flush reduces odor. According to the Rartain technician flushing urine mixed with saltwater crystallizes and forms a heavy scale buildup in the discharge hose. This increases permeation of odor in the hose. Saltwater flush also increases holding tank odor. Another benefit of the freshwater flush is it doesn't need a water pump to pull flush water into the head. The water pump used with the raw water flush (Raritain) pumps uses an eccentric diaphragm pump. This pump is noisy. Reasons posted were my motives for changing over.
 
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