well i finaly finished my DIY pond and it holds water. but only problem is that the filter takes in more water than it puts out. i have a 1800 gph pump sitting in the pond pumping water into the can that is the sump for the filter through a 3/4" tube. the out put is through a 1" tube. what can i do to slow down my pump just a little bit? if there isnt anything i can do i will add another output so there are two 1" out puts. thanks
