Monday morning the RDF was off and the pond lost water. I filed the pond and ran only the bio circuit. Went back six hours later to check and lost 240 gallons. Filled it again and lost water... Long story short I pierced the liner with the wooden stake that I used to support the liner when digging the pit. After fixing the hole left the pond to run and everything was ok so Wednesday I put the RDF on and so far it’s running with no problems.