AzFish Posted February 13, 2008 Share Posted February 13, 2008 Hi, I am in the process of getting a 5x2x2. I am not going with weirs but just two holes drilled in the back of the tank and one in the middle for the return. The two drain holes are 50mm and the return is 32mm. I am putting either a OR6500 or a laguna 7500, will this be enough considering i've got two 50mm holes for drainage? I've read somewhere that 32mm holes will only accomodate approx 5000lt p/h is this correct? Cheers, Aaron Quote Link to comment Share on other sites More sharing options...
Colfish Posted February 13, 2008 Share Posted February 13, 2008 hi Aaron what size is the outlet on the pump? Quote Link to comment Share on other sites More sharing options...
AzFish Posted February 13, 2008 Author Share Posted February 13, 2008 not sure as I havent got the pump yet. I'd imagine it would have a 25mm outlet? Quote Link to comment Share on other sites More sharing options...
Paulochromis Posted February 13, 2008 Share Posted February 13, 2008 not sure as I havent got the pump yet. I'd imagine it would have a 25mm outlet? OR6500 115Watt 3.8mt Head 6500 litres per hour 3mt cable for indoor use only Approx. dimensions L 21cm x W14cm x H 14cm Connections: Inlet: 1 1/4 inch male thread Outlet: 1 inch. male thread Approx. Heads: 1.0m - 5700lph 1.5m - 4700lph 2.0m - 3700lph 2.5m - 2700lph 3.0m - 1700lph Laguna7500 - Powerful pump delivers solid waste (up to 8mm) direct to the filter - Max flow rate: 7500 litres per hour - Max head height: 3.70 metres - Easy click fit connectors - Ideal for use with Pressure-Flo pressurized filter - Includes couplings for 3/4", 1", 1-11/4" & 1-11/2" diameter hosing - Suitable for ponds up to 15000 litres - Low running costs: 100 watts HTH, Paul. Quote Link to comment Share on other sites More sharing options...
AzFish Posted February 14, 2008 Author Share Posted February 14, 2008 thanks for that Paul .. from the above, the outlet is 25mm .. hmm is this going to an issue going into a 32mm hole? Quote Link to comment Share on other sites More sharing options...
rosco Posted February 14, 2008 Share Posted February 14, 2008 I was a little concerned as I had the same setup and was advised to go for 4-5000 litre per hour pump. With 50mm hole you should be able to grab 40mm bulkhead and your problem is solved. cheers rosco Quote Link to comment Share on other sites More sharing options...
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