I have a 1/3 hp shallow well jet pump made by Master Plumber...Bought it at tru value hardware.I cant find anything on the internet about this manufacturer. Did they get bought out from another co.? My main concern is how do I find the cleanout on this pump? I think it may be clogged due to the loud noise it is making and reduced pressure. The pump was installed in 1995 by a local plumber who is no longer in business.I dont have a manual or any specs on this pump.Any help would be greatly appreciated!!