porkypuffer
Member
I JUST RECIEVED THE CPR OVERFLOW THAT I ORDER AND THEY HAVE A VERY GOOD WAY TO MAINTAIN THE SYPHON. THEY HAVE AN AIR LINE FITTING AT THE TOP OF THE SYPHON AND CONNECT IT TO THE VENTURE AIR FITTING ON A POWERHEAD. THE POWERHEAD SUCKS OUT ANY AIR THAT MAY ACCUMULATE. THIS IS ALSO THE WAY THE SYPHON IS STARTED. A CHECK VALVE NEEDS TO BE INSTALLED IN THE AIR LINE SHOULD THE POWER EVER GO OFF. IT'S PROBABLY OLD NEWS TO SOME OF YOU, BUT I THOUGHT THERE MIGHT BE A FEW LIKE ME THAT HAS NEVER SEEN OR HEARD OF THIS. WOULD BE A SIMPLE MODIFACATION TO AN EXCISTING SYPHON.