I am going to be pumping grout into the underside of an overpass for a rehab project. This job is on a major 4 lane highway and the company wants me to line pump it with 3" hose off of my boom pump without having the boom extended. I am just wondering where the best place would be to reduce my 5" pipes down to the 3" line. My pump is an '07 Putz ( if it makes any difference)

close to the pump but gradule like one hose one reducer then the same. you want the same size three inch to make the full run.

hehehe,they need to own several pumps.

My first thought is getting mud in hopper.Then how the second section hooks,it could take out some hydraulics.The hook is not designed to support that weight.

Depending on the set up why not just use an elbow at the top of your 6-5 on deck and go for it.Somewhere TT posted a pic of one he did.For all you youngsters that's the way we did it on the Thompsons all the time,no muss no fuss.But who am I?

In the past couple months, a couple guys have posted that they have put a 90 at the top of the 6" - 5" reducer leading to the deck pipe, then go with the 5-4 and 4-3 reducers.   Be sure you set your rear outriggers, so that your rig is stable when you lift the boom for access to the hopper.

I remember the post of TooTall"s and where he had placed the reducers and figured that would be about the best place. Although because we will be working overhead I was thinking about removing my elbow and reducing right at the top of my turret where it hooks into the first section of boom pipe, or is this too risky or unsafe?

That's the ticket!!

The first thing is to find a place on the deck that is simple to get at and reinstall.You will find if busy you may have to hit a second pour,which will most likely be boom.The other point as mentioned is outriggers.Don't be affraid to put them out as a safety precausion.You may find that it may be nessasary to raise and spin boom to get chut in hopper.It may be a thought to carry a cable come along to help reinstall you pipe,it may move.

Other than that use the same precautions as you would if using boom.I liked that pic of line pumping from a boom truck,that helped give an idea.Let us know how it went and take pic's.

Good Luck

I too was impressed with the Too Tall shuffle pumping off the 6-5. Been doing it ever since. I can not believe I was taking the truck a part for years. What a waste of time! Last month I did 2 jobs in 4 hours with 80' of 3" system pumping off the reducer. It is genius and a time / labor saver!

Thanks, TT  

I too was impressed with the Too Tall shuffle pumping off the 6-5. Been doing it ever since. I can not believe I was taking the truck a part for years. What a waste of time! Last month I did 2 jobs in 4 hours with 80' of 3" system pumping off the reducer. It is genius and a time / labor saver!

Thanks, TT  

 Pump On boys & girls, Every pump is a line pump!

 Had to line pump this job for obvious reasons. (wires!)

too tall ... nice to see you brought along a site office as well!!

Thank you for all the feed back. I will definitely let you know how it goes and will try to get some pics.

Any tricks to priming? Also, do you need to go up the reducer than back down or can you take the 6" 90 off and put the reducer there and go straight out? Ive never tried linepumping without the boom.

You don't want to man-handle that big. heavy 6 - 5 reducer, TRUST ME!! 

As for priming, mix up a cement slurry.  It's the absolute best prime you can possibly use.  Mix it to the consistancy of panacke batter.  Fully compatible with concrete.  By the sounds of the job, the cost of the prime is not going to be an issue. 

If you have a prime port, pour it in there to ensure it is in front of the mud, if not, dump it in the 5-6 reducer.  If you have a long run of system, a couple gallons of water in the line on the ground ensures that the prime doesn't completely dry up before it hits the end of the system, especially if it's all rubber.

why dont you get your pipeline supplier/manufacturer to make you up a short reducer to go either on the outlet or on the first bend , I know its not the same pump but we have and so have a few other s..mac owners over here made up a reducer which is about 8/10" long and goes from 8" to 5.5" which goes straight on the back of the machine. When you are doing short distance ,off the back jobs, it works a treat.