Water splashing out of drain appliance

[Lickdan]

Water splashing out top of pipe think it on about 4 inch never notice it until tested after fitting new pump is it cos no p trap could be cause

 

[Madrab]

No, a trap wouldn't affect whether the pipe would back up or not, either the pipe's restricted, the drain hose isn't far enough in or there's too much water volume.

Of course, standards dictate that it should have a trap, if nothing else to stop sewer gases from escaping.

 

[Lickdan]

I will try a longer hose

 

[gas112]

your bottom connection is this for a dish washer if so then its probably left a load of gunk in that elbow dismantle it and clean it out

 

[Lickdan]

Thanks guys just sorted it I had checked in elbow last night quickly and in tube with dishwasher hose
Just gone and ripped it all apart and found this mesh I put in last summer at end of pipe as a deterrent against mice all blocked makes sense