Water pressure question involving pipe, flexible hose and a filter

[jkramer]

TL;DR

water pressure issues

Summary: water pressure issues

what happens when you take water from a 3/4 inch pipe copper to 1/2 inch flexible braided hose through a filter for a 3/4 pipe back through a flexible braided hose 1/2 inch tube to 3/4 inch copper pipe?

 

[berkeman]

Welcome to the PF.

Can you say more about your question? You are experiencing more water pressure drop than you expect in your system? Can you upload a sketch (use the "Attach Files" link below the edit window), and give us a rough idea of the pressure in each segment that you are seeing? Is there a vertical drop/climb associated with the system? What are the specs on the filter?

 

[Nugatory]

It depends on the rate of flow. Consider the extreme case in which we cap the far end of the last pipe so no water flows: the pressure will be the same everywhere if the piping is all horizontal (if not, the pressure will be higher at the low points).

If the flow is non-zero there will be a pressure drop across the filter and at each of the constrictions; these drops will increase as the flow rate increases.

If you need a quantitative answer (how much pressure drop at a given flow rate) you will have to spend some time with a engineering handbook and the filter specs.