Fitting Jabsco Quiet Flush to Existing Manual Head

[Overlord]

I have a cat and want to fit jabsco quiet flush heads to the existing pump type jabsco heads. On either side of boat i have 2 heads that both share the same water intake .As the pipe leaves the intake ball valve it has a tee fitted and then the water is teed off to both heads.Both water lines are fitted with anti siphon valves. Where in the line do i fit the 12v pump to supply water to the head ? Must i fit 2 pumps, one for each head or can they share one pump. I suppose the problem occurs when both heads are being flushed at the same time.

[peghall]

What you're trying to do won't work. Instead you need to CONVERT your manual toilets to electric toilets...and to do that, you don't keep the manual pumps...instead you have to buy the conversion kits ( everything except the bowl, seat and lid)--one for each toilet. They can both use the same intake thru-hull.

Check 'em out here: Conversion Kits > ITT Flow Control - Engineered for life. Click on each one to to see what's involved...click on Downloads to get the installation instructions.

Avoid the 29200...it looks to be the simplest--and it is. But it also draws almost twice the amperage, makes enough noise to wake the dead and costs more than most complete electric macerating toilets.

While you're checking out conversions, take a look at the Raritan SeaEra...also available as both a complete toilet and a "conversion." Much higher quality, exceptionally reliable/durable. In fact Practical Sailor just rated it the "best budget" electric macerating toilet. You can read all about that one here: Raritan Sea Era

[Intentional Drifter]

I'll just underscore what Peggie said. After having the Jabsco unit for several years -- and repairing it about every six months -- I took Peggie's advice and converted to the SeaEra. It is so much better, it defies description.

ID