Drain Jetter

JD6920s

Member
Mixed Farmer
Location
Shropshire
I’ve started making my own drain Jetter, as I’ve been looking to buy one for some time, then dropped on a hydraulic driven reel off a gulley sucker, so made a start.
I’ve got a high pressure piston pump for the job, but need to source a 50 bar unloader relief valve with a bypass port and a length of the proper thermoplastic pipe, and associated Jetter nozzles.
Does anyone have any knowledge of where best to get these items?
 
Last edited:

JD6920s

Member
Mixed Farmer
Location
Shropshire
A fair pump then! You'll be looking at bigger stuff than I've been playing with. I picked up a 30lpm 250bar pump a while back, with the right nozzle it's got some pull to it.

Yes, I’m looking at using 200m of 3/4” or possibly 1” pipe. I want the 3 port unloader valve so excess water through the pump is returned to tank if not required, depending on nozzle size and number of holes. It’s all new territory for me, I only really know what I’ve gleaned from google at the moment, but should be straight forward with the right components, when I track them down. I’ve found some pipe here just tonight that will probably be ideal.

 

JD6920s

Member
Mixed Farmer
Location
Shropshire
passed a bloody great pressure washer on tandem axles on th a90 northbound yesterday. the signwriting on the side said 500 bar.

TBH it’s very surprising what’s out there when you start to look, I was astonished to see this hose test rig for up to 7000 bar!![emoji50]

 

milkloss

Member
Livestock Farmer
Location
East Sussex
Yes, I’m looking at using 200m of 3/4” or possibly 1” pipe. I want the 3 port unloader valve so excess water through the pump is returned to tank if not required, depending on nozzle size and number of holes. It’s all new territory for me, I only really know what I’ve gleaned from google at the moment, but should be straight forward with the right components, when I track them down. I’ve found some pipe here just tonight that will probably be ideal.


Quite a specialist unloader valve, not sure exchange engineering does they bigger stuff like that, worth a go though as he'll work out nozzle size according to expected speed and the performance of the pump.

Dont forget a breakaway/sacrificial length of pipe for the nozzle. Don't want to go cutting through a nice long thermoplastic hose when you have to dig it up! And regular markings up the main hose so you know where to dig.
 

JD6920s

Member
Mixed Farmer
Location
Shropshire
Quite a specialist unloader valve, not sure exchange engineering does they bigger stuff like that, worth a go though as he'll work out nozzle size according to expected speed and the performance of the pump.

Dont forget a breakaway/sacrificial length of pipe for the nozzle. Don't want to go cutting through a nice long thermoplastic hose when you have to dig it up! And regular markings up the main hose so you know where to dig.

Good call, thanks for that.
 

shumungus

Member
Livestock Farmer
Cheers, I’ll have a look. It’s 177 lpm at up to 70 bar max, I’m told.
You will need one of these unloader wise VB200/150
200 litres per minute
150 bar working pressure.
All ported in 1inch.
20200308_185838.jpg
 

Nukemall

Member
You have probably already got this covered, but how is the pump powered? Are you able to reduce the speed to operate at lower flow rates? If you are jetting 4" pipes, the high flow relatively low pressure of your pump will cause a lot of water to come back up the pipe if it is blocked, and you will need a hell of a tank to keep you going for any length of time. To do this you would need smaller nozzle for the lower flow to keep the pressure up to your 70bar.
 

ste stuart

Member
Location
bolton
Built a jetter years ago, still a great tool. You don't need an unloader valve, we have a simple ball valve mounted next to the reel which either sends water back to tank or down the hose. Nozzles need to be made to suit your pump so unless there's a blockage in your nozzle you won't ever over pressure the system.
For overload protection we just fitted a pressure disc which costs a couple of pence but bursts in the event of too much pressure.
Used jetchem for a lot of the stuff and they where always helpful.
if you want to know anything else just ask.

Ste
 

pappuller

Member
Livestock Farmer
Location
M6 Hard shoulder
What options are there out there for budget jetter setups ? We are starting to see a fair few drains silting up this winter and been on sand only exacerbates this issue. Saw a video on the landy jetter setup, what others are about ?
 

shumungus

Member
Livestock Farmer
Built a jetter years ago, still a great tool. You don't need an unloader valve, we have a simple ball valve mounted next to the reel which either sends water back to tank or down the hose. Nozzles need to be made to suit your pump so unless there's a blockage in your nozzle you won't ever over pressure the system.
For overload protection we just fitted a pressure disc which costs a couple of pence but bursts in the event of too much pressure.
Used jetchem for a lot of the stuff and they where always helpful.
if you want to know anything else just ask.

Ste
I would disagree, fit an unloader and on smaller pipes you can run a smaller nozzle to keep up the pressure but reduce the flow, you can also use a lance for washdown duties and if you have a restricted or blocked nozzle there is not water pishing everywhere, When I have put them together we use an unloader and a burst disc set up.
 

shumungus

Member
Livestock Farmer
Cheers, I’ve seen one on a Jetter with a release lever, I’m guessing it’s to assist start up to take the pressure off the pump, but not sure.
Similar to this,

Put a three port valve just before the reel so you can return to tank for start up, idling, nozzle change or just to stop the water without stop starting the engine/pto.
 

SFI - What % were you taking out of production?

  • 0 %

    Votes: 80 42.1%
  • Up to 25%

    Votes: 67 35.3%
  • 25-50%

    Votes: 30 15.8%
  • 50-75%

    Votes: 3 1.6%
  • 75-100%

    Votes: 3 1.6%
  • 100% I’ve had enough of farming!

    Votes: 7 3.7%

Red Tractor drops launch of green farming scheme amid anger from farmers

  • 1,294
  • 1
As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
Top