25mm corrugated pond hose

I’ve brought 25mm corrugated pond hose to transfer from bulk tank to van tank, are there any connectors to save me standing there holding the hose , plus I don’t want to have to keep taking the Tank lid off. I have tried and inline barbed hose connector but there are far too tight to easily connect and unconnect. 

Something like thishttps://www.ebay.com/itm/Brass-Hose-Tap-Connector-25mm-OD-Garden-Water-Pipe-Quick-Adaptors-Fitting-1/123805656899?hash=item1cd3646743:g:~jQAAOSw~c1dB-ZY ?

I would personally weigh the hose down with a beefy barbed connector or two and fill through the lid. You'd want to stand there to monitor the water level anyway and if you want a hands off autofill approach you'd be better off with a smaller hose diameter to control the the water flow easier.

When the tank is filling there is a fair amount of weight to the hose with water passing through, I had considered drilling a hole in the top of my tank and fitting a brass barbed fitting, but the hose would have to be pushed on tight and may not eaisly come back off without a struggle, so I scrapped this idea incase it became a hassle or I flooded the van, if it wasn't pushed far enough on

I fill mine through the lid opening, hose in tank about 10" or so, then place lid on hose then a partially filled 25ltr container on top to weigh it down when the tank is almost full I turn off the pump and drain the water left in the hose into the container then pour the water in the tank, I use about 30m of hose so it's around 20ltrs of water left in the hose.