Henry Boyd
Well-Known Member
- Apr 24, 2007
- 6,014
- Boat Info
- ‘09 Sabre 38 Hardtop Express “Serenity”
- Engines
- Volvo D6 w/IPS450 Pods
The pump creates its own back flow protection. If you are connected to city water, then you would get city water discharging into the bilge. However, after twelve years of winterizing, my feeling is that the chances of even getting six gallons are very low without disconnecting the cold in and hot out fittings. BTW, when the cold and hot feeds are removed (no city & pump power) the gravity drainage from the system is more nuisance than leak.