PVC WC waste pipe not fully seated. Problem????

[jppie1]

Hi, thanks for taking a look at my post. I'm currently having a house built.The drain pipes for my house have been laid and the slab will be poured on Saturday. The sweeping 90 that joins the 4 inch waste pipe below ground doesn't seem to be fully seated. When I stick my hand in I can feel a 3 to 4 mm gap between the end of the pvc pipe and the inside seat of the 90 bend. The house maker told me that this is not a problem. I would really appreciate a second opinion. I'm sure it wouldn't be a problems with the bath or lav drain, but the toilet has a 5 meter horizontal run....I really don't want any problems once the slab is poured.

:confused5::confused5::confused5:

 

[plumben]

3 to 4 mm shouldn't be a problem this can happen if the pipe isn't cut square but the seal on the bend is at the frount of the socket

 

[AWheating]

expansion gap. doh worry.

 

[Ray Stafford]

Another one in the don't worry camp. The sockets are several 10s of mm deep. A little gap may even be an advantage in terms of expansion.

 

[stevetheplumber]

i would be more worried why the wc has a 5 meter run or do you mean the drain is 5 m?