We used to have a Newmar Kountry Aire, and it had 2 - 45 degree bends. Xc-mark's above advice is solid, but I still had a couple of clogs in 6 years of full timing. In the plumbing department, Lowes and Home Depot carry some stiff clear plastic hose (believe it starts with a Q"). You can adapt a short piece of this (use the 3/8 in) to your water hose and cut the end off at a 45 degree. It is flexable but still pretty stiff, and with the water turned on, you can poke it through just about anything. Clears a clog in seconds and you can just carry it with you. Learned that trick from an old RV repairman on the first clog. Hope it helps.
2004 Volvo VNL-670, ISX 450 hp/1,650 tq, Eaton 10 Sp Autoshft, Trailer Saver 32K# Air Hitch.
2007 Chevy 3500 Dually, Trailer Saver 25K# Air Hitch