I was wondering how many of you use a double 90 at the end of your hose for ICF or big floor pours or for that matter do any of you use a hose that has any steel on the end for any reason.

I have come accross a few situations where doing a ICF wall they want a double 90 with a handle and I refuse to use it and even after I explain why they still insist but I will not pump with any type of steel at the end. Here in Ontario there are no pump regulations regarding this but I think there should be.

Some guys have given me such a hard time about this and even when explained they dont get it or dont think it will happen to them.... YOU ARE  Pumping along and you suck air because the mixer driver is not paying attention or the truck for some reason miss strokes or what ever... and it bucks and that nice piece of steel 8 inches from your head or from your legs then becomes a weapon if it does not kill you where you stand it will break bones but they still dont get it.

I see alot of operators using some kind of deflection device or another and I just cringe and yes pumping ICF is slow and like watching paint dry. And lately the big slab pours I have been on have been high volume and they bitch because it is splattering and they are getting dirty. But getting dirty is alot better than getting injured in my books 

Hey zman at our company we use a 3inch hose with a flat flexable rubber hose on the end great for ICF. On all of your other pours what size tip hose do you have.

The last Co I worked for simply stated no steel off your tip hose,unless a wall pipe is used.This was company policy,no laws or government rules.

Most ICF guys around here use a 3/8\" mix.I like the double 90 at boom reducing to 3\",always worked good for me.

As for slab pours I have heard good things about the 5x4 reducing hose,I believe it was conform\'s.There are little tricks such as knowing how to angle boom,engine/pump speed,slump of concrete to help solve that problem.Personally I found pours at 60+ yards per hour splatter was not a big issue.When we were on the smaller slab pours with a slump of say 5\"+ a 3 1/2\" tip worked well.

Folks have seemed to have gotten over the \"Velocity reducer\" craze. There are still way too many double ended hoses being used as tip hoses. Dangerous business!

The 5\" to 3\" reducing hose from CF works very well but they are twice as dangerous as a double set of 90\'s. If the operator doesn\'t stop the pump immediately when the hose plugs, the pump will build maximum pressure and sometimes force the plug through the hose causing it to whip violently. I\'ve had a lot more dangerous occurrences using the 5 to 3 hose versus the old double 90\'s. When I want to slow the speed of the concrete down for ICF\'s, I reduce the 5\" pipeline coming out of the boom down to 3\" using steel reducers, then I put on a one ended 3\" hose. When I\'m forced to use the 5 to 3 reducing hose, I turn the pump speed down so when the pump plugs, doesn\'t build pressure so fast.

S-bends and double ended hoses , I would be fired on the spot ! 3\" rag or a 5 to 3 1/2 reducing hose..... Knee knows ! in CA. No way !

OE-3

years ago i had heard of a guy getting his face shattered by one of these double nineties. it happened when the concrete plugged in the ninety out before the operator could shut her down it burst through and the elbow needless to say struck the guy in the face.this was in the interior af bc. at that time iwas working in vancouver. we were told that the double nineties were outlawed by ohands.in alberta ialways get asked for the double nineties,iuse a 3in short whip and tell the people that story then ask them if they still think its worth using it. then i tell them to let me know if they want it so i can send for another operator because i will not use them. when i go out to play i like to see everyone go home in the same shape that they showed up in.   be smart be safe.                                                                                                                          

Hey Now I feel better that I was not being to laime about this But I will say this when I stick to my guns about this I get it thrown in my face that other pumpers use this and I tell them that is ok until it happens and then hurt or kill someone...... With me being a ski patroler I am great at trauma accidents but I dont want to practice this on any jobs I have been on.

Hey on the big floor pours it is 5 inch and it is flowing at such a high rate that the hose is full I am aware of what is going on 100% no laps in concentration here because with such volumes being put through well you guys know what can happen.... as for icf 5 to 3 reducers with rubber hose and slow pour.

\"bob if a double ended hose is dangerous, what do you call a double ended hose with a double 90 and a clamp\"

I call it a \'mace\'. Just like they used to use back in pre-gunpowder days. If you are intent on killing someone; a mace is a good way to accomplish the task.

So sad.

I have had bad experience with reduction hoses, down here we have alot of river rock with the gradation not being so good,in my opinion reducing hose should be banned,on icfs we use a 5 to 3 reducing 90 on the end of the tip swivel then we put water pump discharge hose on the end this works well but the s-tube is a pain to clean at the end of the day we only pump 7 sack pea gravel with about 1200 lbs of rock.

On ICF Foam block I use a 3\" hose with a hard rubber pour pin on the end, I pump low rpms, and just let it flow nice and slow...ensure your hoseman stops you in advance so it don\'t just keep flowing and make a mess.....3\" with a hard rubber pour pin works great.  If it flows out too fast you may be able to angle your last section to horizontal also, to slow the flow.

I have done a couple foam houses and i just used a 5-4 reducer hooked up to a 4 - 3.5 in hose. and it worked great