Is it just me or are operators running longer and longer whip hoses i see what looks to be 25 footers hanging off the boom video that the guy recently was killed that was posted here and i see pictures of two hose hanging from a reducer doesn't make sense to me guys whats your thoughts i know the sticker on my boom my training and my acpa certification tells me not to do it

You are right, completely

Remember there are many different criterias to our job.Think about it,boom over house,hanging thru iron/steel,boom plus to catch the far end,go figure.We will probably never know the exact truth but it's an every day reality,prudence comes into play.

There should be industry standard to forbid the use of steel belted end hose unless its double ended AND being hooked up to a static line off the tip.

All other hoses of the tip should be textile reinforced and single spouted. No need to have a steel belted drop hose rated at max machine pressure at the tip, where there is no pressure at the tip to begin with.

the op manual on my putz sayys one 10 foot 5 inch hose or 1 reducer and 1 10 foot 4 inch hose.

that is all i will hang off my boom.

I think it may just be you AK1. I do not see a lot of pumps besides my pumps pumping but the ones I do see run a hose 10' to 13' long and that is what I use. I would guess that this operator had a reason for running this long a hose. Why would he go to the trouble of putting 2 hoses on? His error was not taking it off when he no longer needed it. Are you implying that the hose whip was caused by the long hose?

In the catalogs I have, tip hoses are steel reinforced. I presume they are steel reinforced because they must be ready to take full pressure and full weight hanging on the boom. What would be the difference if they had steel or not? If just fabric is it softer? Sure does not feel like it.

Two of my pumps only have weight limits on what you can hang on the end of a boom. I could put 20' of hose with reducer and concrete on the end and not exceed the weight limit.

its unlikely any drop hose will reach 85bar, let alone 5bar. If you block in the hose your pretty much doomed either way otherwise the steel reducer will block with a reduction.

The steel belted hose is there to break your back, like i said unless your gonna hook to a static line its practically useless. Causes more problems than good!

  You must consider hose diameter as a factor. There is a huge weight difference between a 3" and 4" hose full of concrete. The position of the tip section is also a factor. If the tip section is horizontal and the boom is extended I will not hang more than 1 tip hose. If the tip section can be kept within 10 degrees of vertical I will hang more system or tremme pipe etc.