I have a 5x8 enclosed trailer. Say I were to get a hose reel for either supply or pressure, any ideas how to mount it? I’m not looking to use a swivel or anything, they’ll be fully unrolled once I get to the jobsite anyway. I may switch to a lighter Flexzilla from the 3/4" ZeroKink I’m using now, just too heavy and bulky.
I found a couple decent used ones locally but not sure how to bolt them in.
Weld some or have someone weld some up for you. I put a video on YouTube a while back about how to mount stuff to trailer walls using blind fasteners so you can bolt right into the wooden panels. If you can’t weld or don’t have somebody that can weld you can use perforated steel to build racks, bolts and lockwashers like an erector set. Google perforated angle iron 
If it’s just one reel bolt it to the floor with large washers under the trailer. If
you plan on a pressure reel and a supply reel buy identical brands so you can also purchase a stacking rack. I did and had three reels on top of each other. I bolted 2x4s to the floor and bolted the reels to the 2x4s and secured them to the wall because it was so high. They are rock solid.Here’s the video about mounting stuff to trailer walls. If you really wanna learn something cool YouTube nordlock washers and then google clamping force of bolts.
You’d be surprised to find out 1/4” bolts are almost overkill for making stuff stay put, but shearing is the main problem. The difference in shearing force required between 1/4” and 3/8” is kinda mind boggling. Nerd alert.
Bolt it to the floor with large washers like @Clean_Blue said above works great and you will never have an issue with it again.
Be sure to check your bolts during your weekly equipment and trailer maintenance schedule. I have found over time, the vibration of a trailer loosens them up. Hell, last week one of the bolts on my loader was loose.
Good idea to have a weekly equipement/trailer/truck maintenance checklist.
Mine includes -
Equipment - Check all hoses (unreel everything) and inspect. Check orings (i usually just change all orings weekly as a preventive - they are only like $.20 each). Check all bolts including pump/unloader. Check all hose connections. Check swivels/grease. etc, etc, etc
Truck - check all fluids - brake, tanny, oil, steering, radiator, windshield washer, etc. Check tire pressure/tread.
Trailer - check tire pressure/tread, check boards, check tounge/wiring, etc, etc, etc.
Make your own checklist and do it weekly. While you are around your stuff daily, you are busy and in the job mindset. Taking an hour once per week can pay huge preventive dividends. Like I said, I found an unloader bolt loose. 1 thing I do not have a backup of. Blown out unloader would shut me down at least for a day or two to get another and fix (note to self, get a back-up unloader).
If anyone interested, here is my plain jane form I created to remind me of everything to check. I do my check each Sunday afternoon and it takes about 1 hour. I need to update it, as it is missing a few things, 12 v system, water tank connections, and chemical supplies portioning (I preportion all dry chems into mix bags so that on-site I have exact amounts for either 12 oz spray btl or 1 gal pump up - each morning I fill my 5 or 15 gal containers as needed for the day - usually only Hydroxides or SH& Soap if work is on the schedule that needs that for the day).
If anyone is interested, here is my weekly supplies order form I use. As part of the weekly maintenance, I prepare an order for everything I need. On this form I have the items, build to (the amount total I want to have), on hand and needed along with vendor, vendor item # and price per unit. By doing this weekly, I am checking everything I could need or use, and ordering before I run out. My build to levels are probably high, but it is only a 1 time expense to stock to that level. From their on out, I am only getting what I need to meet that level and to ensure I never run out or waiting on something being delivered. I found this system works much better than the “Oh, I better order more of that”, as you get busy, a day goes by then another and bam! you need it and don’t have it waiting on shipping or grabbing locally at a much high price. I am always looking for sources to buy in bulk to further reduce cost of these items I go through on a regular basis. If I could buy say couplers in a box of 12 at $2 each, I would do that in a heartbeat as that would reduce my cost per couple by over 50%. Sure I got to spend more today, but over 6 months, it is just “free” money staying in my pocket.
