Water filter upstream of the pump?
Thinking to add a sediment filter (and a proper strainer instead of a tiny strainer that came with my pump). With my plumbing it's easier to install it upstream of the pump: tank -> 50 or 100 mic...
Forum Discussion
It's basic hydro...
In order to push water thru the filter, the upstream side pressure has to be higher than the downstream side. If the filter clogs, it needs a bigger pressure if you want any significant amount of water to pass thru.
- Upstream of the pump is gravity fed. Let's say you have a really deep fresh water tank (2ft deep) and it's full to the brim and the filter is flush with the bottom...2ft of head will generate about 0.9psi. So the theoretical max pressure differential across the filter is 0.9psi..though in reality it will be less as you won't be able to drop it to 0.0psi if there is water flowing and most tanks are not always full nor are they 2ft deep.
- On the downstream side of the pump, the pumps generally put out pressure somewhere on the order of 30-50psi...that's a lot more pressure available to push water thru the filter while still retaining enough pressure to send the water to the various outlets.
In order to push water thru the filter, the upstream side pressure has to be higher than the downstream side. If the filter clogs, it needs a bigger pressure if you want any significant amount of water to pass thru.
- Upstream of the pump is gravity fed. Let's say you have a really deep fresh water tank (2ft deep) and it's full to the brim and the filter is flush with the bottom...2ft of head will generate about 0.9psi. So the theoretical max pressure differential across the filter is 0.9psi..though in reality it will be less as you won't be able to drop it to 0.0psi if there is water flowing and most tanks are not always full nor are they 2ft deep.
- On the downstream side of the pump, the pumps generally put out pressure somewhere on the order of 30-50psi...that's a lot more pressure available to push water thru the filter while still retaining enough pressure to send the water to the various outlets.
