I was having water pressure problems.I feared my 30 year old well had come to its end. I called EDS for the bad news & they sent a repairman. He replaced a few old parts and the badly clogged line & explained the function of each component in the system. He did the job, cleaned up his mess & gave me an itemized invoice of every part# with description and price. He was friendly & professional & reasonably priced. It works great! Overall, a positive experience. Id be glad to recommend EDS. Randy.