- Location
- New Jersey
Hello reefers this question just came to my head lol. But I would like to know if i changed the impeller of my 700 GPH pump will it make a big difference on the water speed coming out the pump?
It can but I would be cautious to unless you know for sure the new impeller diameter will fit.
If you are looking to reduce gph, you can cut a few blades off the impeller to reduce water movement. Make sure the blades you cut are equally ballenced by cutting equal opposite ends unless you will have an imbalance.
To increase gph, I recommend an additional or new pump.
I wouldn't risk it. Better off buying a bigger pump.