water filter and pressure regulater
We are at a campground with high water pressure and use a regulator (we always do)and a filter. By the time it gets to the tap, pressure is really low...if I take the filter off it's ok. Do you think...
Forum Discussion
Everything between the campground faucet and the outlet of your RV tap slows the flow. This is due to pressure loss through the plumbing system components, which is additive.
In general, the smaller the opening(s) in the component, the greater the pressure drop and the slower the water will flow. You can get more flow through a 5/8” hose than a ½” hose, through a filter housing with ¾” connections than ½” connections, and through a sediment filter with 50-micron pores than 5-micron pores – all because of less pressure drop at a given flow rate. Therefore, the specified flows for sediment filters should be accompanied by a pressure drop value. For example, the flow rate is 5 gpm at a pressure drop of 10 psi.
For a cartridge that is sealed in its housing and is installed by pushing it up into the head an twisting, the specified pressure drop is the total drop. For a sediment filter using a cartridge that can be removed from its housing, both the cartridge and its housing may have separately specified pressure drops, so you would add them together to determine the total drop. By measuring the pressure drop with pressure gauges at the inlet and outlet at the specified flow, you can determine whether or not the drop is excessive. This is how to determine when the filter cartridge is plugged.
Some combination cartridge/housing filters are designed with a shut-off that activates when the assembly is removed from the head. If the assembly is not properly re-installed, the shut-off valve might not open fully. For separate cartridge and housing filters, On occasion, the pressure drop was caused because the installer forgot to remove the protective shipping wrap before installing the cartridge.
By determining pressure drop at various points in the system you can determine where excessive restriction is causing lower than expected flow.
BTW, the specified flows for carbon filters usually are not based on pressure drop, but on the maximum flow at which they can successfully reduce contaminants like chlorine.
In general, the smaller the opening(s) in the component, the greater the pressure drop and the slower the water will flow. You can get more flow through a 5/8” hose than a ½” hose, through a filter housing with ¾” connections than ½” connections, and through a sediment filter with 50-micron pores than 5-micron pores – all because of less pressure drop at a given flow rate. Therefore, the specified flows for sediment filters should be accompanied by a pressure drop value. For example, the flow rate is 5 gpm at a pressure drop of 10 psi.
For a cartridge that is sealed in its housing and is installed by pushing it up into the head an twisting, the specified pressure drop is the total drop. For a sediment filter using a cartridge that can be removed from its housing, both the cartridge and its housing may have separately specified pressure drops, so you would add them together to determine the total drop. By measuring the pressure drop with pressure gauges at the inlet and outlet at the specified flow, you can determine whether or not the drop is excessive. This is how to determine when the filter cartridge is plugged.
Some combination cartridge/housing filters are designed with a shut-off that activates when the assembly is removed from the head. If the assembly is not properly re-installed, the shut-off valve might not open fully. For separate cartridge and housing filters, On occasion, the pressure drop was caused because the installer forgot to remove the protective shipping wrap before installing the cartridge.
By determining pressure drop at various points in the system you can determine where excessive restriction is causing lower than expected flow.
BTW, the specified flows for carbon filters usually are not based on pressure drop, but on the maximum flow at which they can successfully reduce contaminants like chlorine.
