Sink problems

[ratraget]

hi all, i own a 1998 coleman cheyenne by fleetwood. hand pump on sink for tank
water doesnt pump. also the sink doesnt drain to well, any comments are appreciated.

[wavery]

hi all, i own a 1998 coleman cheyenne by fleetwood. hand pump on sink for tank
water doesnt pump. also the sink doesnt drain to well, any comments are appreciated.

There may be an air leak between the tank and the pump. The pump creates a vacuum in the water hose to literally "Suck" the water up from your tank. If air is allowed to enter the water hose, someplace, it will lose vacuum.

The other problem is, the water pump diaphragm may dry-out with a lack of use. Sometimes, you can take out the diagram and soak it  (or the entire pump) in warm water and that may revive it. If the diaphragm is cracked, it must be replaced. Think of it more as an air-pump than a water-pump.