Reduce output from Eheim 1260

[IanJ]

If i want to reduce the output a little, should i put a restriction on the inlet or outlet?

Thanks

[elzool]

Outlet

[carlos_fb]

How close to the outlet should the valve be installed?

[AZDesertRat]

Never restrict the intake of a pump.
It does not matter where you restrict the outlet. It can be done with a ball or gate valve, smaller diameter tubing or pipe, additional fittings like tees and elbows, vertical rises in the discharge piping or any number of ways but valves are easiest in most cases.

[IanJ]

Thanks guys, just purchased an in-line tap