Uern D70 — System & Component Overview and Operaon
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Grey Water System
Entertainment sink drain
Entertainment sink drain hose
Grey water tank
Tank pumpout hose
Pumpout deck plate
Tank vent hose
Tank vent thru hull
Maintenance
Maintenance of the grey water system will require you to check the ngs and hoses to make sure
that there are no leaks. If the system does require maintenance, contact your local dealer.
Uern recommends that you pump out the system before long periods of non-use. If you are storing
the boat during the winter, we recommend you winterize the system.
To Winterize the Grey Water System:
1. Empty the grey water holding tank via the dockside pumpout.
2. Pump water through the system to remove any residue materials.
3. Empty the grey water holding tank again, removing all liquids.
4. Pour an environmentally safe anfreeze (Propylene Glycol based) in each sink and allow to
drain to the holding tank.
5. Bilge Pumps
Your vessel is equipped with two bilge pumps, with one located in the a secon of the boat, and the
second one located in the forward part of the boat. Access to the a bilge pump is via the motorwell
access plate, while access to the forward bilge pump is through the forward cockpit oor hatch. Both
bilge pumps are rated for 500 GPH, and are acvated automacally by a built in mercury free oat
switch when the water in the bilge reaches a predetermined level. You can also manually operate the
bilge pump at the console by pressing the bilge pump switch.
Inspect the bilge pump intakes and keep them free of dirt or material which may impede the ow of
water through the pump. To clean the pump strainer, depress the lock tabs on both sides of the pump
and li the pump motor.
If water does not come out of the discharge hose:
1. Remove the motor module to see if the impeller rotates with the power on.
2. Remove any debris that may have accumulated in the nozzle secon or strainer base.
3. Check hose and connecon on hull side for debris and proper connecons.
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