Jayco Newbie

lvlsbug

New Member
Joined
Apr 1, 2025
Posts
5
Location
AZ
Hello!

Just purchased Jayco 2022 Jay Hawk 27RB! We have a few questions….

What is the diameter of the water hose hook up? 1/2 or 5/8 inch?

What amp electrical cord is best. 30 to 50 amp or 50 to 30 amp?

Manufacturer wasn’t helpful and the manual has “if so equipped” everywhere!

Lisa
 
Hello!

Just purchased Jayco 2022 Jay Hawk 27RB! We have a few questions….

What is the diameter of the water hose hook up? 1/2 or 5/8 inch?

What amp electrical cord is best. 30 to 50 amp or 50 to 30 amp?

Manufacturer wasn’t helpful and the manual has “if so equipped” everywhere!

Lisa
Water connection is the standard hose fitting. You can use, 1/2, 5/8 or 3/4 what ever hose (drinking water approved) you want to buy. However 5/8 would be the best bet.

If your rig is originally set up for 30 amp, there is no reason to spend extra money on a 50 amp extension cord since you will also need an adapter. If it's a 50 amp rig, you will need the 50 amp cord to run everything properly. Also.....
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If the power cord on your MH has 3 terminals it's a 30-amp service, 2 flat and one round ground. A 50-amp cord has 4 terminals. 3 flat and one round ground.

I agree with Grumpy, that a 5/8" ID water hose is more popular, and easier to coil up than a 3/4" ID. The ends are all standard garden hose size.

If you camp in places with water spigots that aren't close on your site, carry a variety of extras. We carry a 4", 2-10' 2-25' and a 50', along with 2-25' 30-amp extension cords. There are times they saved the day.
 
So…we purchased used. Love it so far but not having the specs is tough. After reading the Handbook, everywhere it says if equipped, which we don’t know for sure. Sent VIN to Jayco service, not much luck. They said we could use 50amp to plug in but they never recommend electrical hook ups.

So, looking to buy the accessories and the electric is pricey. Also don’t want to damage anything by getting the wrong amps!

Thank you for your help!
 
Owning your first RV can be daunting, but don’t worry, you’ll learn a lot quickly! And don’t feel bad about asking questions here. We’ve all been there!

As a newbie, you might want to consider a couple of suggestions related to water and electric. Invest in a water pressure regulator, even if it’s just a cheap “set flow” one. Better yet, adjustable ones are out there for $30 or so and could save you real trouble from over-pressure. Also, a surge protector or, better yet, Electrical Management System (EMS), is another good investment to protect your components. Yeah, nothing’s cheap but it’s worth it. Enjoy your new trailer.
 
We had a 2020 27RB. It has a 50amp setup. If you have the second AC for the bedroom you will want to get a 50amp cable. If not, you could get a 30amp cable with a 50 amp adapter.
Agree with Jflightrisk in purchasing more hose than you think you need. I recommend getting the Gforce collapsable hoses to save space. If you are more than 25' from electrical hookups then you are at the wrong campground. ;)
 
Sometimes you have to camp where there is only 30 amp service. You can get an adapter, $20, but it will not have enough power to run both ACs at the same time.
I hate the standard white plastic hose and changed over to Zero G brand which has worked for me for several years but I do use a water pressure protector. A good idea to have a separate hose for cleaning the sewer pipe and connections.
 
My new camper is 50 amp. Previously they were all 30 amp. Having a 30 amp to 50 amp adapter came in handy as the 30 amp are (were?) more prevalent and thus the 30 amp receptacles got more use. At least 2 times the 30 amp receptacles were in poor condition at the campground and I simply used the adapter and 50 amp receptacle. I did report the problem to the campground office. So if your camper is 30 amp, a 30 to 50 amp adapter could come in handy.
 
The manufacturers could simplify building if they made all RV’s 50 amp service. In this day and age with the addition of so many electrical do-dads it would make it easier on everyone. If we happen to go into a 30 amp only campground it is a pain having to worry about exceeding the 30 amp limit. With 50 amps all the power worries are non-existent. If I ever consider replacing my current TT I will always shop for a unit with 50 amp service.
 

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