trenching attachment advice

[Bristol Fashion]

Hiya, we're a csa here in Bristol, using a venerable bcs 737. Is anyone aware of an attachment that can dig a narrow trench suitable for burying 20mm black water pipe, ie narrow and around 30cm deep?

 

[Jrasband]

Hiya, we're a csa here in Bristol, using a venerable bcs 737. Is anyone aware of an attachment that can dig a narrow trench suitable for burying 20mm black water pipe, ie narrow and around 30cm deep?

Mini-Trencher - Earth Tools

Trenches 2 inches wide, up to 6 inches deep, piles soil neatly to one side, super-heavy-duty cast-iron gearbox with hardened steel shafts and gears in an oil bath

www.earthtools.com

 

[Jrasband]

other option would be to use the rotary plow since you only need it under the surface.

 

[JJT]

I've rented a self propelled walk behind trencher numerous times, it did a trench 6"x18" at over 100' feet per hour, in hard rocky ground. Take small 6" bites, (multiple passes). Well under $100/day.

 

[bdhsfz6]

When I worked for Bell Telephone, we used a vibratory plow instead of a trencher. We used it to install black water pipe for later use as conduit for underground wiring.

Unlike a trencher, the plow made very little surface damage. On most jobs, you couldn't tell any work was done.

https://www.ditchwitch.com/trenchers/vibratory-plows/100sx/

Many rental yards have them at reasonable rates. Unless you do a lot of work like this, it might be cheaper to rent rather than buy an attachment.