How to Clean Drain for Roof Downspouts

Submitted By
Constance Andres
1 expert, 0 community

New outside drains were installed to carry the rain water from the downspouts away from the foundation.  Roof gutters were cleared of debris last week.  One of the downspouts is not taking the water this week.  I need to open the white PVC cover on the access drain next to one of the down spouts in  order to insert a water hose to determine if there is a clog in the drain going away from the house.  Each down spout goes into newly installed drains which then go out into the yard to connect with the main drain going away from the house.  All drains are underground.  How do I open the cover of the access drain?  It has about a 2 3/4 " slot across the top that is about  1/2" wide and about 3/8" deep.    I have put in a call for someone to come to see what need to be done with the roof gutter, but is is raining each day here in Pittsburgh PA and the water is leaking into the basement.

Your help would be greatly appreciated.  (ASAP, Please!)

Thank you.

Constance Andres