Exterior filter is good idea. Lid that catches debri is not.
I use this to spray the weeds behind my house. Great output, good capacity, very well made. I adapted it to use with a small tractor.I wish I would have bought a larger one but this is just fine
So far doing perfect. I use this in a home made camper for fresh water. I'm very impressed with how the pump works and mounted on the side. It has a plastic cover over the pump for protection that comes in handy when I pack the trailer。Used it to spray weed killer.
Pam 
