HELP ON DURSO PIPING!

[marble]

Hi Bro/Sis

Need your advice on the following queries:-

I have 2 Even Length of Durso pipings in the overflow which the water will flow down to the sump.

I observe tat 1 of them is ###### in the water very fast and with high outflow but the other 1 is not ###### as much and the outflow is very little.

Why is tis so? Is it because there are 2 durso pipings to suck in the water continously and tat is y 1 of them has very low flow output?

[colinsoon]

something stuck inside the other one?

[marble]

Nope, bro Collin. It is juzt tat 1 pipe has water gushing out and the other onli a slow stream of water coming out of it. Ha Ha...

[rogersoh]

Hi,

Just like to check more detail first. I suspect it is caused by air binding.

Is 2 of the Durso pipings in the overflow connected to a common piping before going to the sump?

If yes, is it connect with a Tee joint with the Durso piping connect on the top of the Tee joint of the common piping.

As the overflow piping will suck in some air, the velocity of the water in the 1st overflow piping will be high enough to cause the air will flow down thru the overflow piping. But when it reaches the common piping and the changes in the direction, the air will start to flood up, and from the opening of the Tee to the 2nd overflow piping the air will escape up thru there.

If you had this problem I will suggest 2 method to solve it.

1. Using seperate piping to connect it to the sump

or

2. change the overflows that joint to the common piping to the bottom and to add additional venting pipe for the air to escape out. Please allow sufficient length to prevent overflow.

Hope this help