Hello.I have an 1800 gallon underground cistern for household water supply,located across the road in a unheated pole barn (my house is on a river bank). The pump is located in a crawl space under the house which makes for a very long suction line. The suction line at the tank is 1" galvanized pipe 30" long about half way up the tank. It then elbows to the house with 1-1/4" plastic to the crawl space. the pump is a Myers HR50S
shallow well jet pump with 1-1/4" inlet and 1" outlet. About 15 " from the inlet the suction line is reduced to 3/4" galvanized. Why would this be plumbed this way? I am going to replumb the piping under the house. Should I keep this configuration? Also I tried to add a foot valve at the cistern but the pump would not get it's prime. It didn't have one before so I took it back off.
The reason I am replumbing, is because it is at least 20 years old and to install vacuum gages to find out why I can only draw a few inches below where the suction pipe elbows down in the cisternand. I hope if there is leak it isn't under the asphalt road. Thanks for any info.
shallow well jet pump with 1-1/4" inlet and 1" outlet. About 15 " from the inlet the suction line is reduced to 3/4" galvanized. Why would this be plumbed this way? I am going to replumb the piping under the house. Should I keep this configuration? Also I tried to add a foot valve at the cistern but the pump would not get it's prime. It didn't have one before so I took it back off.
The reason I am replumbing, is because it is at least 20 years old and to install vacuum gages to find out why I can only draw a few inches below where the suction pipe elbows down in the cisternand. I hope if there is leak it isn't under the asphalt road. Thanks for any info.