- Joined
- Jul 12, 2016
- Messages
- 327
- Reaction score
- 298
- Location
- Croswell MI
- Hardiness Zone
- 6A, we are also very windy
- Country
I needed check valves to my filter falls from syphoning during a power failure or to keep one pump from back-flowing through one that had failed. What I could find locally had why too much resistance to work with reasonable pumps, so I build my own. First I found some 2 inch rubber balls at Dick's sporting goods store, and the PVC parts can be found at almost any hardware or home improvement store.
Into the side of the 3 inch I drilled a 1 1/8 hole and cut the 3/4 PVC to fit flush inside the hole, the 3/4 pipe will keep the ball from seating on the wrong end.
the rubber ball goes in the other end,
then everything is sealed up,
When I hooked up the manifold and connected it to a pump the unused check valve only had a very slight dribble that stopped after a couple days. the water is inleted through the top where the ball naturally floats to.
Overall I'm very happy with the results, now I'll put a waste gate valve on the other side to drain the swirl chamber.
- 1, rubber ball
- 2, ea 2 inch to 3 inch PVC adaptor
- 1, short piece of 3 inch PVC pipe
- 1, short piece of 3/4 inch PVC pipe
Into the side of the 3 inch I drilled a 1 1/8 hole and cut the 3/4 PVC to fit flush inside the hole, the 3/4 pipe will keep the ball from seating on the wrong end.
the rubber ball goes in the other end,
then everything is sealed up,
When I hooked up the manifold and connected it to a pump the unused check valve only had a very slight dribble that stopped after a couple days. the water is inleted through the top where the ball naturally floats to.
Overall I'm very happy with the results, now I'll put a waste gate valve on the other side to drain the swirl chamber.