Do we need a swing check valve?

[academiannut]

Trying to describe to hubby the swing check valve. He’s not sure we need one.

Skimmer is inside the liner if that matters.

1) do we need it?
2) can we put it outside the skimmer box or should it be inside?

 

[GBBUDD]

Not knowing how your pond is set up, that question can't be answered truthfully.

 

[Mmathis]

What is a swing check valve?

 

[GBBUDD]

check valves are in two main types one has a hinge on one side of a flap inside the pipe as the water pump shuts off the flap has a spring that pushes it to the closed position. when the power turns on the flow of the water pushes and against the flap and the check valve swings open. wala swing check valve.

the other popular type is a circle with a spring and a rod in the center as the power is on it pushes the circle to the open position . and when power is lost the spring pushes the circle down and closes off the flow

 

[academiannut]

When do you need them/what’s the point?

We have an in-liner ecopro prelude skimmer with an 1800 gph mag pump. Nit sure what other factors matter?

 

[GBBUDD]

is your bog or waterfall higher than your pond.
is the pipe always in the water or does the pipe sit above the water

 

[academiannut]

Waterfall is higher, yes -

Skimmer holds pump and the tubing will go out the back of it

 

[GBBUDD]

if you have a small feature then check valves maybe over kill . if your waterfall was to empty out into the pond would it over flow or is there enough carbon to bring back.

 

[cas]

I'm not sure how your waterfall is, but my waterfall has a bio-falls at the top. During the season the bio-falls collects a lot of sediment. I need the check valve so when the power goes off, the water (and any sediment) from the bio-falls does not flow back into the pond. I also don't want the bio-falls to dry out because I don't want to lose the good bacteria that has been established in it.

 

[academiannut]

Ahhh this helps. I don’t have a filter in my waterfall but I do have one about level with the pump btw the waterfall and pump. I’m thinking we don’t need one.

 

[academiannut]

We don’t have that much water btw the pump and the falls. No room for a bog filter.