This product has been around for a while now so I was wondering if you guys have any experience with them that you would like to share.

So far I have tried worn 5"-3" on one occasion and noticed less boom bounce, but they seem somewhat hazardous to mee since you're moving the plugging problem right down where the hose man is.

they are sweet but don't last very long. especially the 5-3 hose. I use a 5-4 sometimes but generally keep the reducer on there because I'm adding system off the 42 a lot and its easier to remove my one ended 4 inch hose and add system rather than remove hose and add a reducer / hose combo

5 x 3 is a very handy hose..not sure on the life. When using in conjunction with an air cuff the weight of the Crete..2 b slab mix..squeezes the water out of the mix above the cuff ..if your sitting say 10 minutes cuffed that section of Crete doesn't want to reduce causing a kick or a plug. The 5 x 4 does this less. The reason the boom bounces less is because when the stroke pressure shifts ..the concrete lays down..so the boom isn't totally full..when the boom remains full you spend less time doing height correction and adjusting stroke speed..at the right speed you will have no bounce..speed it up and it will bounce due to the thrust expanding the hose..keep a full stream not an extreme stream..the bounce also comes when the loads get inconsistent..dry load fast stroke equals bounce..same speed wet load no bounce. the 5 x 3 can do everything from bridge mix to flow fill..use common sense..bridge deck..they want a full stream..they want 4 or 5 slump..use a 5 x 4 reducing hose..walls 5x3.. Nice stream..less splash..more throw with the stream for the hose man..just remember when you sit around waiting on trucks keep a full hopper..leave the air cuff deflated and stroke every few minutes, or bring your change of clothes so when you plug it and have to take it off.

tried 5 - 4 and 5 - 3.  will never use again.  keep the reducing through steel

love em. there all i run off the boom now 4 to 3 1/2 is my favorite your better to reduce over 4 metres than one 1 metre dont seem to ever plug on big slump changes like a short steel reducer does either.

It seems wear is of concern then... I suspect the "cannon syndrome" is less of an issue since we all use pneumatic valves (not the hose-cuff type but much more robust) at my company, making air pockets less likely.

The hoses I use everyday has a safety margin 2x, so if working pressure is rated 85 bar, the guaranteed burst pressure is above 170 bars. I have seen a reducing hose at full pressure (85 bar pump), after it plugged due to a very rocky mix, and it seemed to swell a lot. Does anyone know if it has the same 2x margin ?

I still don't understand why these hoses are legal. They are hazardous.. But I cant realy care to much. Don't understand the US so-called safety ideas anyway. I'm happy here in Europe (without reducing hoses )

I love them for Residential.  I put a extra grate on to help keep from plugging. Only part that sucks is if you do plug its a pain sometimes to get the crap out.  They seem to last a long time also.  Just wish they made a 4-3 reducing hose.

Stoneter put it very well and his post was very insightful to me. When I pumped in Calif. I used a 5 - 4 reducing hose and that worked well and the hose man seemed to like it also. The hose man's opinion is very important to me when selecting a hose, but as concrete pump operators,  we have the finall say no matter what on any job for more reasons than just safety when it comes to anything on the pump.  

In Alaska I used a 4 - 3 and half inch hose and that always worked out well for the material we use up north here. Although the hose man always wanted a 3 inch hose. Oh well, after several plugs in the 4 to 3 reducer. I got them to like the reducing hose. 

the hose man will have a different opinion when theres a plug in the reducing hose you can't/don't catch in time.  rather have a fin chunck plug in a steel reducer then in a rubber hose.  to this day, have never had problems getting a pumpable mix through a 2 foot reducer.

Don't care if someone says he has never had problems. I've been using double 90s for 10 years (in the past) and never had a problem. But I am willing to admit they are dangerous and should not be used..

Watched a fellow operator almost break a guys leg with a double 90 ..he was training me, seen another guy lose all his front teeth with a double ended hose..another guy training me..I always pay attention to the truck and hose..they are in my control..if there's going to be a plug you can tell..kinda when a hose man is guiding you down a wall..you anticipate it..which way he is going..his rate of progression..obstacles that might injure him etc..always, you make adjustments..consistently ..pre maintenance by yourself if your qualified, or someone who is ..helps you to do your job which is accommodating the PAYING customer with PROFFESSIONAL service..no distractions..no excuses..no shortcuts..no speed racing. A reducing hose is a good thing in the hands of a qualified ppersona my time you use any hose inspect it for outside fray..and inspect the inner wall at the steel end and make sure it's still there..if it is damaged..please don't use it

you guys dont know no how lucky you are hose men haha. i havent had someone else on a hose in my 14yrs pumping

its hose in me left hand. remote in me right hand. doesnt matter if im smahing out 150cube per hour or doing blockfill.

in a way it can be safer because you can feel yourself through the hose whats going on and adjust speed to suit.

but still wish we had people that would go on hose for us im getting to old for the commerical lol me wrists are poked.

I am not gonna say to much , because last time I got called in on a deposition for a lawsuit that involved reducing hoses, keep your reductions in steel !!!! , you may plug more often , but you rarely have to worry about it jamming and cutting loose in the hose causing a whipping action.

I read some of these posts , and it amazes me that professional, experienced operators do not understand the dangers of reducing in rubber, I have been operating for 23 years, and used reducing hoses only because they came on 2 brand new pumps, maybe its our mixes down here, but 3 out the 4 times I used them I had hose whipping problems due to pressuring up , hose expanding, and the plug that would've been caught in a 5-4 reducer pushing out the hose, and I was paying attention one time heard it stopped the pump and before I could reverse it it released, I have since cut all the ends off these hoses and sent them to the grave yard.

5-3 hoses r a lot safer than the 5-4 on a 5-3 if your paying atention u can tell when they are going to lock up and in my 22years of pumpin they are alot safer takes a lot of ass to unload one 5 in on slabs 5-3 on walls