Sand in Driveway after Backwash

[Kmharper]

So I just had a new sand filter installed last week. Due to lots of recent rain, I needed to drain a few inches from the pool so the skimmer would work. I used the backwash setting to drain the few inches since I don't have a submersible pump. I did this yesterday. Today I noticed that on my driveway where the backwash hose is there is a LOT of new sand. Inspecting inside the hose there is additional sand. Is this normal to have a lot of sand emitted during the first backwash after a new sand pump installation? Or should I have not have backwashed to drain the pool the few inches it needed? I have a push-pull valve, by the way.

Thanks to all for your great advice!

Kevin

 

[Kmharper]

Here is a pic of the driveway sand. I saw in another thread that there might simply have been too much sand in the filter and it'll self correct itself.

 

[Pool_Medic]

That’s a lot of sand. I suspect they overfilled it.

Remember you shouldn’t backwash too long and remember to use rinse mode once complete to settle the sand again. Also you can use waste to remove excess water, this by passes the sand.

 

[Kmharper]

Thank you for the quick response. Unfortunately, I don't have a multiport valve, so I can't rinse after backwashing or empty water from the pool using the "waste" setting, right? I hope it was simply too much sand, but he installed 250 lbs and I think my filter holds 275 lbs. Thanks again for your help.

 

[Pool_Medic]

Odd, what options are written on the top by the handle which you moved to get it to backwash?

 

[Kmharper]

Hi Again, There are no options. Basically up is filter and down is backwash. Here is a pic. You can see my old filter in the background that did have a multiport valve where I could rinse and vacuum to waste, etc...