Quote:
Originally Posted by elmizze
OK! I didn't know that when the overflow stops, the underflow also stops. Now I know. Thank you! Now I no need worry so much! 
But why underflow also stop? I don't quite understand  |
When theres no additional water added to your tank from your pump, the water level is still at the lower mark. Thats why overflow and underflow dont work when your pump is off. So when you switch on your pump, water is constantly adding in to your tank, thats why excess water above the lower mark will flow out to your ious chamber then to your sump. Just that it has 2 ways to flow out, one is top the other one is bottom. Hope you understand what i mean. Or maybe other bros can explain in a better way. Sorry
) cheers