Is a Special Glue Required

[bk406]

Your right on the pressure vs DWV, but like i said, it's all schedule 40. The DWV stuff is actually rated for some pressure. A PVC sewer system has to pressurize for 24 hours at 10 feet of head so thats about 6 psi. It will hold up to pool pressure, but it's just as easy to get the pressure rated stuff.

However, using DWV is probably not why it didnt glue up properly. My guess it's the flex they used. It doesnt look like Tiger flex and cheap flex is har to glue unless you get it good and clean and primed.

 

[Txmat]

So BK if I understand correctly you are not recommending I change out the DWV because it should be able to handle the low pressures in a pool. However, in the future I should be careful to get the regular pressure rated pvc instead of DWV. As I said earlier I will be looking for the Waterway union so I can re plumb the line correctly.

 

[bk406]

No, I'd change it out to the higher pressure stuff. My point was thats probably not why it didnt glue up, but over the long haul, thats not the right fitting type for this application.

 

[Txmat]

Thank you and again Happy Thanksgiving

 

[Poolschoolgrad]

You will need the correct pump and filter unions if you switch to "hard plumbing" from flex.
Waterways part # 400-4060 for the pump side.
For the filter side you need the 90 deg. sweep elbow part # 500-1901.
Please verify these part numbers with the make and model number of your pump/filter combination when you place your order.