if you look closely at the fitting where it comes from the pump you'll see it was 1" and they used a reverse reducer to turn it into a 1 1/2"
you can keep the pipe going into the tank and use a reducer in essence it will restrict flow cutting down on the return.. also you can use same size splitter (Y pipe) in essence it will send fixed flow out 2 different outlets and should reduce the flow out.
you could leave the 1 1/2" 90 and place a fitting on it to divert the flow out too. using the 90 will keep the water flow below surface..
you have a bunch of options
1 think about pvc is you are only limited by how creative you can be.
you can keep the pipe going into the tank and use a reducer in essence it will restrict flow cutting down on the return.. also you can use same size splitter (Y pipe) in essence it will send fixed flow out 2 different outlets and should reduce the flow out.
you could leave the 1 1/2" 90 and place a fitting on it to divert the flow out too. using the 90 will keep the water flow below surface..
you have a bunch of options
1 think about pvc is you are only limited by how creative you can be.
