MANHOLE

Flush Bolt Down Watertight

The DSI Water Tight Monitoring Manholes has been independently tested to

 assure they meet the DOT H-20 traffic-rating and help protect against water

infiltration for monitoring wells completed at-grade. The lids are painted white

with a black monitoring well triangle and are clearly marked "Monitoring Well".  

Our Manholes utilize a Buna-N ™ gasket that expands as the bolts are

tightened, forming a leak resistant seal.   An aluminum plate is installed on

the rim to inscribe the well number and indification.  A 9/16 inch ratchet or

wrench is used to gain access to the well. The manholes feature a galvanized

shirt construction. Designed to meet the USA API 1615 recommendation for well covers.

Other sizes, and custom made manholes are available upon request.

LAY-IN LID

The DSI Lay-In Lid Monitoring Manholes has been independently tested to assure they meet the DOT

 H-20 traffic-rating and help protect against water infiltration for monitoring wells completed at-grade. The

lids are painted white with a black monitoring well triangle and are clearly marked "Monitoring Well"

Manholes.    An aluminum plate is installed on the rim to inscribe the well number and indification.   The

manholes feature a galvanized shirt construction. Designe to meet the USA API 1615 recommendation for

 well covers.

Other sizes, and custom made manholes are available upon request.