Roots in Sump Pump Crock?

My mother's house was built in 91. The last few years, we've been getting roots into the sump crock through the drain tiles. It's not clear if they come from inside the drain tiles or not. It looks like they may very well follow the outside of the tile through the crock hole into the bottom of the pit.

If they are INSIDE the drain tiles, what is the standard procedure? If they are outside, is there anything we can do?

Not sure what tree they're from. There used to be a large cedar tree about 15 feet away from the sump pump (And 4-6 feet up, of course) but that was cut down a few years ago. Although recent research I did indicates that it may be the 2 poplar trees that are probably ~ 80 feet away. (They've been in place for 15+ years, and the tallesr one is ~ 60 feet, I'd think)

Anyone? Any ideas? No plumbers have encountered this?

use a product called Rootx.

And just how would I get that product to flow backwards into the drain tile, yet not affect the grass that the sump pump discharges on to?

Sounds like you have enough ground water where this should not be a concern!
I can come up a dozen ways to kill the roots off but as faras not killing the grass...
Yikes!You do need to find a way to get thses to quit growning into your drain tile before the roots plug the thing off! An ounce of prevention....

Well, I can't come up with any ways to kill the roots. I'm open to workable suggestions. We'll drain the thing into a drywell downhill from the house if we have to. That would keep the grass from getting killed.