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#1
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Filter flow question
Trying to increase the flow from the filter back tot he pond. Increased
return pipe by 1/4" diameter. The filter is a canister type tetra PF3. Currently the disarge pipe in about 8-10" below the water surface. Can this slow the flow rate? |
#2
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"bk" wrote in message ... Trying to increase the flow from the filter back tot he pond. Increased return pipe by 1/4" diameter. The filter is a canister type tetra PF3. Currently the disarge pipe in about 8-10" below the water surface. Can this slow the flow rate? It will have an affect (even if only slightly, at the depth), because it is placing a hydrostatic head on the pump that it has to overcome. Most pumps have charts that come with them in the manual that tell you what the rated output is for a given amount of head. At that depth, it should not have too great an affect on the pump |
#3
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Since his filter is a TT type, the pump does not come into play for draining
purpose. However, your explanation still apply to the drain from the filter. Draining should be slower because it take energy to move the water at the outlet. t's only gravity flow from the bottom of the filter into the pond. He should open his filter and see how much water back up on the bottom. If water back up 1/4 of his TT, then he should be concerned about drain flow. george wrote: It will have an affect (even if only slightly, at the depth), because it is placing a hydrostatic head on the pump that it has to overcome. Most pumps have charts that come with them in the manual that tell you what the rated output is for a given amount of head. At that depth, it should not have too great an affect on the pump |
#4
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Back up is greater than 1/4 of filter. So I'm thinking of adding another
drain spout. "Sean Dinh" wrote in message ... Since his filter is a TT type, the pump does not come into play for draining purpose. However, your explanation still apply to the drain from the filter. Draining should be slower because it take energy to move the water at the outlet. t's only gravity flow from the bottom of the filter into the pond. He should open his filter and see how much water back up on the bottom. If water back up 1/4 of his TT, then he should be concerned about drain flow. george wrote: It will have an affect (even if only slightly, at the depth), because it is placing a hydrostatic head on the pump that it has to overcome. Most pumps have charts that come with them in the manual that tell you what the rated output is for a given amount of head. At that depth, it should not have too great an affect on the pump |
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