the part thats in the tank. This way when the water drops below that hole it will break the siphon. you will get a little bit of water siphoning back into the sump but not all of it once it reaches the hole you drill
and yes drill 2. it works better
the part thats in the tank. This way when the water drops below that hole it will break the siphon. you will get a little bit of water siphoning back into the sump but not all of it once it reaches the hole you drill
and yes drill 2. it works better