Was loosing water in my pool for several months and called Pool Service & Maintenance Professionals only after calling to other companies for estimates and to troubleshoot the problem. Was told by others that I had an underground pipe leaking and they wanted $2000 to dig up and put in new suction and return lines. When Pool Professionals came out, they were courteous, clean and found the problem in 15 minutes! It was a bad backwash valve that was continuously leaking. My drain is in the front yard planter box so I was not aware this leak was happening. Total cost for service call and repairs was only $225. These guys are terrific and I highly recommend them to all my friends!