I'm looking to find a non submersible pump to handle my 30 gallons 35% aqueous glycol (whatever viscosity that may be) through my 1.5 BBL jacketed fermenter. Would like it to be quieter than my march brew pumps, and would like it to be able to run for quite a while without a rest. I know it's not a standard pump anyone here would be interested in for brewing. Pipes are all 1" diameter throughout, but the pump head can be smaller or bigger. I keep seeing a LG non submersible self priming pump on the internet, but it says it can only handle 15 minutes continuous duty, and then needs 45 minutes rest. Anyone have any ideas? Thanks!