I´m a linepumper and it´s pretty often i do pumpjob where my remotecontrol don´t have conection up to the pump, not even comradio or cellphone up to groundlevel works from the end of the hose - specialy when foundationmoles is far away down under the ground, narrow culverts etc. At that type of job i have to stand beside the pump on groundlevel - but how do i know when to start and stop pumping in the middle of the pouring? 

It´s simple, i use a string tied to my arm and goes down alongside the hoseline to the concreteworkers. When they do two pulls in the string, it means: start pumping - one pull means: stop pumping. All other snatchpulling in the string also means: stop pumping. It´s simple and it works every time. I don´t know what a safety representative say about it, but the job has to be done in some way.   

Cool. Id also agree on some sign for : Give some strokes in reverse... We have a plugg we have to open the line .. Than you don't have to go down and beat the plugg out of the hoses your self ;-)

Why not put a tin can on each end and talk ,just kidding I use a hard wire off/on switch mine is 350 ft long, there is no guessing your switching on your pumps are electlic  sensing type switches. I don't pay for a remote they are to expencive.

Yes Biged, a remotecontrol is unreasonable expencive, ask my wife - much less nice newbought shoes and purses for her when i bought and let install the remotecontrol in to the pump. But thoose job i do, is it impossible to perform whithout the remote......Not impossible, a string conected to my arm is good as well, but you know how many gravelloader-machines and skylifters there are driving on the buildingplaces. The string will get caught in the first machine 5 min after pumpstart. The remote has not just a start/stop-button. It has also two buttons which i can stear a magnetic valve conected to an aircompressor when i blow the ball. one magnetic valve let air in, and the other valve is a decomper - air out. Then i can easyli catch the ball in my hand at the end of the hose instead of the ball shoot out like a bomb and spray all cars or newpainted buildings, whith concrete.

In Sweden says the law that the pumper is not allowed to pump if he not can se whats happend at the end of the hose. If a concreteworker get injured by the end of the hoseline because the pumper didn´t stop the pump in right time, then is it jail and a loads of fine for the pumper if he not can prof that he had full sight to the endhose. Thats why my remotecontrol is very important. I never use the stringmethod if the contractor are serious like the muppets, then i have to say no to the job if my remote don´t have radioconection to the pump.

In Sweden is the punishment lower for a rape, than it is for a pumper who not have full sight to the endhose.    

Dipstick, i don´t understand what you mean whith that plugg. Can you please explain what it is and how it works?

Well... if you get a plugg while you are pumping.. You normaly take a few strokes back to take the pressure off the line before you can open any clambs right? And the crew has to be sure you've done that. So a sign to confirm the pressure is off would be handy right? And if you have a sign like that you would not have to go down to them and you wouldn't have to help them eighter..

But I was actualy just joking a bit. Nothing important..

Sorry Dipstick, it´s some English word i don´t understand - but now i understand what that English word means - and thats why i now understand your point. The Swedish word for plugg, directly translated is: "hosestop".

Ok :-)