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sumrandumguy
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Joined: Aug 04, 2007
Posts: 139
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 Posted: Sun 6th Jul 5:39pm Post subject: Drainage For Dirt Jumps/jumps |
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how do you make drainage for dirt jumps? Do you just have a hole filled with rocks or shingle nea the low point or should there be trenches comming off the jumps? What is the best way?
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konaking
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Joined: May 28, 2006
Posts: 2,193
Location: Northshore Auckland
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| Posted: Sun 6th Jul 5:56pm Post subject: |
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dig a trench horizontal at the base of landing before the next takeoff about 10cm in width then put wood over the top with hole drilled in it and a run of drain into a hole
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konaking
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Joined: May 28, 2006
Posts: 2,193
Location: Northshore Auckland
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| Posted: Sun 6th Jul 5:58pm Post subject: |
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or have the track on a slight angle
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mattyfreerida
Ridden
Joined: Apr 05, 2008
Posts: 163
Location: chch
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| Posted: Sun 6th Jul 6:02pm Post subject: |
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yeah i reckon the trench idea is good one but you could put holes to the side between the jumps and curve the bit between the jumps the same way the roads are done
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tives
Thrashed
Joined: Jun 15, 2007
Posts: 1,430
Location: petone
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| Posted: Sun 6th Jul 6:02pm Post subject: |
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its kinda difrnt for each set of djs depending on soil and the area but yea wot he said
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konaking
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Joined: May 28, 2006
Posts: 2,193
Location: Northshore Auckland
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| Posted: Sun 6th Jul 6:10pm Post subject: |
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you could use turf like da fake grass in a small trench
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sham
Scuffed
Joined: Apr 05, 2008
Posts: 295
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| Posted: Sun 6th Jul 6:22pm Post subject: |
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| konaking wrote: | | you could use turf like da fake grass in a small trench |
Astroturf, the stuff David Bowie smokes 
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sumrandumguy
Ridden
Joined: Aug 04, 2007
Posts: 139
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| Posted: Sun 6th Jul 6:23pm Post subject: |
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thanks guys, yea true it depends on where the jumps are etc. the wood idea sounds good
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konaking
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Joined: May 28, 2006
Posts: 2,193
Location: Northshore Auckland
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| Posted: Sun 6th Jul 6:48pm Post subject: |
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ye i use wood at da jumps i build but make sure the trench across da jumps is deep and on an angle into a hole u got the clay from for da jumps or something along those lines so da water dosent run off somehwere u dont want it
it also helps if its near a stream or river so it runs of into thatr and u have a supply of water if jumps are to dry in sumer
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jamieinauckland
Thrashed
Joined: Oct 05, 2005
Posts: 1,395
Location: deep in the bush
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| Posted: Sun 6th Jul 6:50pm Post subject: |
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generally dig trenches along side the jumps leading away from the jumps or to soak holes between each jump. Don't build any water course over across or near where your tyres go.
No shingle or boards. Just dig the trenches lower than the takeoffs so that puddles don't form
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sherdforlife
Scuffed
Joined: Aug 09, 2006
Posts: 361
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| Posted: Sun 6th Jul 7:38pm Post subject: |
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just the flat part on a slite angle and then a trench on the side, or build them in your garage
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ac_sknight
Ridden
Joined: Nov 17, 2005
Posts: 246
Location: Woodbourne
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| Posted: Sun 6th Jul 7:50pm Post subject: |
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trenches to the side, or if your really going to the effort get that drainage tubing and lay it underneath the area of the takeoffs/landings and drain it into a sink hole (hole full of rocks)
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HuntawayFR
critical but stable
Joined: Jan 09, 2007
Posts: 1,231
Location: Queenstown (the real south Auckland)
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| Posted: Sun 6th Jul 8:11pm Post subject: |
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building your landings / transitions on a slight angle out to one side into a sink hole is the easiest way,
avoid little trenches, wood covering them etc, they will be more hassle than is worth it & can really interrupt your flow.
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