With the increasing interest in soccer and the need for properly drained fields, DWR Drainage has developed a unique concept of soccer field drainage. Installing 4" plastic tile in a stone envelope 3 to 4 metres apart, 1-1/2 feet deep will allow play to continue after a heavy rain. Good drainage promotes deep root growth which leaves you with a strong durable grass surface. Deep root growth will also stand up better to summer drought.
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These pictures explain how our concept works. We believe this to be the fastest, most efficient way of installing soccer field drainage with the least amount of soil disruption and compaction.
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This shows the complete machine with front attachment on blade which cuts the trench and lifts dirt out while dozer blade cuts off the spoil and shoves it to the end of the tile run, leaving the field clean while the gravel hopper (back attachment) slides on the ground following the trench.
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The plough point on front of dozer blade rips the trench and the dozer blade pushes the spoils to the end of the pipe run, thus keeping the soccer field sub grade clean and even.
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Shows the pipe spooler which holds the roll of pipe off the ground and feeds it down the boot. Pipe is not exposed to dirt or mud and unrolling like this avoids pipe getting kinked or damaged. If using nylon filter on pipe this eliminates cuts and tears to the filter which lessens the chance of sand and silt getting into pipe at the tears. Avoiding damage to the nylon filter is very important.
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Shows the pipe unrolling and feeding down the boot. The pipe passes through the boot and out the back getting laid on the trench bottom under the hopper with stone flowing around the pipe immediately while the pipe is still held in place by the boot. This method eliminates all chances of the pipe shifting while placing the stone because the stone flows around the pipe rather than being dumped on top.
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Shows the stone coming out the back of gravel hopper with tile already installed and bedded in stone. No open trenches – pipe is completely protected all the time. Note the lever at the back of the gravel hopper. This regulates the depth of stone in trench. Also the lever at the side of hopper which will shut off the stone at the end of the tile run, stopping the stone from running out on the ground when you pull out at end of trench.
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Shows gravel trench with stone flush with sub grade.

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Shows gravel trench with stone 4 to 5 inches from sub grade. Depth of stone can be regulated.

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Shows the trench cut by the front blade. This is a close up taken in the trench. This trench is approximately 9" wide. Note the smooth clear cut as compared to being dug with a backhoe or trencher. This method eliminates the need for a “filter lined trench”; however, we do have a spooler on the back of the hopper that installs 12" wide filter on the very top of the stone if needed. Some engineers prefer to have the trench covered with filter, however filter covered trench will slow down the water percolation process.  I do not recommend filter unless the backfill is sandy soil.  When filter material is used in clay or loamy soil it will fill up with a very fine silt over time and slow down water movement toward the tile.

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DWR Drainage Inc. 3018 Perth Line 33, RR4 Stratford, Ontario N5A 6S5
Tel: 519.271.4777   /   Cell: 519.276.1529   /   Fax: 519.271.0327   /   Email: dwr.roth@ymail.com
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