One ended flexible hose problems
Any Pump 06-11-2007
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Our company are getting really strict on us using one ended rubbers when working straight off the boom but this becomes quite a problem when you have finished a pour or moving the pump as you have no way of putting an end cap on. They are currently trying to come up with solutions. Does anyone have any ideas ?

french1 06-11-2007
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Kink the hose and tie it.

 


Any Pump 06-11-2007
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This is what we have been doing but the people in our safety department that come up with the ideas say that this is not in the procedure guide. All they seem to do is keep putting more obsticles in our way 16 years I have been operating a pump and we are up against problems like this all the while.

JohnThomas 06-11-2007
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When i move i suck a sponge back, and when im finished after sucking a sponge back i stick a sponge in the end of the tip hose to prevent any water from falling on my truck

Any Pump 06-11-2007
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When possible I do put a sponge in and suck back into the second or third section but I operate the 52m boom and when you have got four sections straight up and the tip onto the slab sucking back from that position makes a hell of a mess onto the back of the hopper. Even when you have tried to keep the hopper low before finishing.


Buddha 06-11-2007
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Hey Any Pump, tie your hose off, fly it off the building, un-kink it and pump back into your readymix truck, then suck a sponge and put another sponge in your tip hose when you go to fold up.  You have to come off the building anyway to move the pump.  I never move my machine without the entire pipeline clean.  I suck my sponge all the way back.  C. Y. A.

Mudslinger 06-11-2007
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Hi Guys: To kink my tip hose,I like to use a ford truck power steering belt! It'sthe perfect diameter and its rubber against rubber,so it wont just slip off!

Bob 06-11-2007
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Tip hose splatter is the worst. It trashes your boom and pump-cell. YUCK-O!

A slice (2") of motorcycle innertube over a rag will STOP all that dribble. Slip it off, shake it out and put it on the outrigger and you are ready for next move. ;~)


pumpon 06-11-2007
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maybe just take drop hose off and cap with end plug , if you use reducer make end plug to suit

Many 06-11-2007
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I seem to remember a conversation with Les on this subject long ago.He simply stated on a move company policy was to pull a ball.I just can't express his wisdom,makes sense.

bradirect 06-12-2007
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Hello pumpers.  I'm the new Marketing Director at Con Forms.  I'm finding there are a lot of Con Forms products that are not well known, including one that was made for the issue being duscussed here.  The CF Air Cuff Hose Shut-Off Valve automatically closes when the pump is in the OFF position, with all kinds of benefits, including eleiminating the need to kink, which improves safety and life.  You can see more info at this link - http://www.conforms.com/conforms/spotlight.asp

Hope you find this helpful! 


Bob 06-12-2007
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A ConForm air cuff is a viable tool when, for example, pouring columns or any other time when you are moving your boom from point A to point B. A CF cuff should be used in these applications. This product does not prevent 'dribble or splatter' from your boom hose when folding up to either move your pump or to clean out.

As for sucking a ball, well that is fine, as long as you remove it from the system before any "forward" pumping is undertaken. Pumping a ball back out thru your tip hose is dangerous. A hard ball may be propelled at extreme velocities, and poses a risk to coworkers. A soft square sponge, although not as likely to cause damage to an individual, may never the less cause air pressure to build within the boom system and 'shotgun' grout and sand out the discharge end of the boom. I am NOT in favor of sucking any sponges or balls for a move unless they are removed from the system prior to resuming pumping.

The least innocuous method for preventing boom dribble and the resultant boom splatter is the method of covering the outlet with a cloth that is restrained by an expanded peice of rubber. My reasoning is

1. If the machine is inadvertently turned on, the cloth will detach its self with out causing any build up of pressure; thus causing no opportunity of 'hose whipping' or other discharge of pressurized air from the boom system.

2. The cloth and strap method is very effective in preventing the original problem of splattering concrete grout on the boom's paint job, and it is a cost effective method of acheiving this end.

Bob Sanderson www.concretepumpingsafety.com


bigboom 06-12-2007
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I run a 61m and b&b will not allow me to move wet. if mud flashes costs are to high. about 40k for pipe and labor and bout 100k or more in down time. with that said i would recommend that a wash out would be best.

JohnThomas 06-12-2007
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I suck a sponge back all the way to the hopper with some water but i dont wash out. Grab my sponge and pump the rest out!!!


bigboom 06-12-2007
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suicide prime, very brave

Buddha 06-12-2007
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That is what i do when i move, suck sponge all the way back into hopper, float it, put 5 inch rubber gasket with rags over tip hose, fold up, re set back up and pull sponge out of hopper.  Get everyone well away from tip hose and prime back through.  Boom is still wet so you don't have to pump hard to get it back through, just nice and easy.  Works every time. 

Bob 06-13-2007
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Buddha,

The rag and gasket deal only works on a two ended hose, right? And, oh by the way, I like it that you remove the sponge from the hopper before you re-start pumping.  And for those of you that worry about the re-start, you can always put some slick stuff in the prime port. ;~)


pumper chuck 06-13-2007
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Whenever i move to reset suck ball back,remove from 90 cover tip hose with a piece of poly and metric rubber to holdin place.

OneHit 06-14-2007
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I Suck A sponge back to end of 2nd stage & Use a piece of visquine & a 5 " Rubber, Works well with or with out both ends on the hose.

Bob 07-10-2007
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Nice, simple and looks very functional ;~)