ObolskY;4868072; said:idk if it makes the noise without the impeller in i didnt try it but if it is the sand im gonna replace it with gravel -___- the sand is so nice i hate to get rid of it but if i gotta do it i gotta do it lol
I've had sand get into my impellers and it did make the grinding noise. But once rinsed out the noise stopped. If your intake isn't too low you should be fine with the sand.