Everhard 3m EasyDRAIN Polymer Grate And Prejoined Channel

If the grate was large enough to fit over the channel, perhaps you could have a tradesperson cut a thin slot between the channel and concrete to accept the lip

Recycled plastic or concrete channel stormwater drainage Slot drain attachments Grates include stainless steel, cast iron and plastic

slot cam But the quantity of water that has caused you to dig the trench and drain the area will actually use the pipe Stormwater rectification stage 1 · Stormwater

slot machibe 171 L x 171 W x 137mmH, 100mm internal channel depth, 20mm slot visible from the surface once installed; Manufactured from 100% recycled polymer