Backflow hose or PVC pipe length

[numberonenole]

My husband wants to extend the backflow hose. He is also talking about digging a trench and making a longer run with pvc pipe. He wants it to go about 120 feet back. Is this do-able? We have a 1 1/2 HP pump. Any suggestions? Thanks!

 

[duraleigh]

No problemo unless you are going to push it uphill.

 

[woodyp]

I've got one buried for about 60 feet myself. Just put some drop on it over the distance.

 

[JamesW]

I would recommend using 2" PVC. I would also recommend putting a vacuum breaker on the line to allow the line to drain when you are done backwashing. You can get a cheap (less than $10.00) plastic vacuum breaker at most hardware or plumbing supply places. Where you come out of the multiport and use a 90 to go down, instead use a T and put the vent pointing up.

http://www.homedepot.com/buy/oatey-sure ... 66132.html

http://www.homedepot.com/Plumbing-Pipes ... =100204205

 

[numberonenole]

Thanks for the replies! There is a slight incline. Maybe 10 degrees. Is that too much of an incline? Is the issue that the pump won't be strong enough or that it will burn the pump out?

He was talking about using 1 1/4" pipe. Is that ok?

I take care of the everyday maintenance of the pool, so I want to make sure his project is not going to cause any problems! Thanks again!

 

[duraleigh]

There is a slight incline.

up or down?

 

[JasonLion]

Slope down away from the pump is fine, slope up away from the pump could be a problem.