Calculating PSI? I have a 1.5 horse power water pump near a 1 inch...
I have a 1.5 horse power water pump near a 1 inch outlet at 75 gpm. I cant find any information of the PSI of the pump and I cant get a PSI gauge that will fit it minus disassembling my current system and spending over 100 dollars. Is there anyway to calculate psi?
Probably between 60 and 80 psi. Get a guage that fits the guage port and read from 0 to 120 pis. Probably 3/8" with fine threads. I would check in at the Library!
There should be a book on how to work out PSI...
Lets start with some basics. I assume you are conversation about a [well] pump which delivers hose down to your house. Whatever the manufacturers spec, or the tables contained by a book at the library say, the only course to find the ACTUAL psi of YOUR system [not a theoretical system] is to measure the PSI of YOUR system. The PSI depends on MANY variables, so you cannot look it up or find it within an instruction book. You need to put a pressure gauge into your system. They are not expensive. Whether you enjoy steel pipe, plastic pipe, or whatever, you need to cut into the system [between the storage cistern and your home distribution system], install a "TEE" fitting, and screw a pressure gauge into the tee. This will make available you an ACTUAL PSI reading...nothing else will. If your $100 estimate is from a plumber, that's not a bad price, assuming you own no plumbing knowledge, and no friends, relatives, etc. who can help. If you hold help, get a indicator at a plumbing supply house or home store which is made to measure from zero to something like 100 PSI, shut off the pump [cut the power to it] install the Tee and gauge, and turn it adjectives back on. Check for leaks, read the compute, and your set. Can you check the manufacturer's website to see if they have any manuals for it online that would hold it? Even the older models usually have manual available. Or fine the maker's phone number on the website and call them - I've done it before contained by a similar situation, and they were really helpful.
Answers: You can go and get a pressure gauge that screws on to a hose bib, or any hose thread, for smaller number than $10.