# 7 gpm fat boy 12 volt pump **URL:** \ **Category:** Soft Washing\ **Created:** [January 31, 2021, 12:43am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314 "2021-01-31T00:43:11Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 12:43am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/1 "2021-01-31T00:43:11Z")
Hello everyone. I hooked up my softwash pump… it is a 7gpm fat boy. I am using 3/4 inch metering valves with 1/2 inch hose going into my tanks… my main hose is 5/8 inch… so today I ran it for the first time and it did so so… I was barely able to hit the peak on a 1 story house… probably up about 25 feet… my question is could I possibly get more distance from this pump… thank you all in advance ---
**Author:** ![sgb](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/sgb/32/18792_2.png) [@sgb](https://pressurewashingresource.com/community/u/sgb)\ **Post date:** [January 31, 2021, 1:10am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/2 "2021-01-31T01:10:57Z")
You should be getting more. I know this sounds dumb but is your battery, A: strong enough. B: charged? ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:14am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/3 "2021-01-31T01:14:45Z")
Yes it is fully charged… I ran 2 deep cycle batteries ties together ---
**Author:** ![Oakley](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/oakley/32/23385_2.png) [@Oakley](https://pressurewashingresource.com/community/u/Oakley)\ **Post date:** [January 31, 2021, 1:28am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/4 "2021-01-31T01:28:56Z")
Switch out the 5/8 hose for 1/2 hose ---
**Author:** ![mwpws](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/mwpws/32/33836_2.png) [@mwpws](https://pressurewashingresource.com/community/u/mwpws)\ **Post date:** [January 31, 2021, 1:31am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/5 "2021-01-31T01:31:57Z")
What kind of gun and nozzles are you using? ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:33am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/6 "2021-01-31T01:33:47Z")
Suttner gun with a M5 twist nozzle ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:35am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/7 "2021-01-31T01:35:02Z")
If I’m not mistaken going down in hose size will have less flow because it is more restricted ---
**Author:** ![MuscleMyHustle](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/musclemyhustle/32/25298_2.png) [@MuscleMyHustle](https://pressurewashingresource.com/community/u/MuscleMyHustle)\ **Post date:** [January 31, 2021, 1:35am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/8 "2021-01-31T01:35:51Z")
1/2 is all you need. ---
**Author:** ![Oakley](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/oakley/32/23385_2.png) [@Oakley](https://pressurewashingresource.com/community/u/Oakley)\ **Post date:** [January 31, 2021, 1:35am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/9 "2021-01-31T01:35:52Z")
It’s the hose…lol ---
**Author:** ![Atlas1](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/atlas1/32/1896_2.png) [@Atlas1](https://pressurewashingresource.com/community/u/Atlas1)\ **Post date:** [January 31, 2021, 1:38am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/10 "2021-01-31T01:38:04Z")
Y’all are killing me with this…Totally goes against all friction loss rules…Has anyone done at true bucket and/or distance test to substantiate the “1/2 is better than 5/8” claims? (I’m not trying to discount the claims, just trying to wrap my head around this…I’m seeing it way too often to doubt it, but it _shouldn’t_ work that way per hydraulic theory) ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:39am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/11 "2021-01-31T01:39:26Z")
Yea I can’t see how 1/2 hose will get me more distance ---
**Author:** ![Oakley](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/oakley/32/23385_2.png) [@Oakley](https://pressurewashingresource.com/community/u/Oakley)\ **Post date:** [January 31, 2021, 1:44am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/12 "2021-01-31T01:44:16Z")
As far as this thread goes, someone’s having problems with distance with 5/8 hose… never a problem with our units using 1/2 in. I’m certain it’s his hose diameters and/or nozzle ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:47am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/13 "2021-01-31T01:47:14Z")
I was only able to hit the peak on a 1 story ---
**Author:** ![Atlas1](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/atlas1/32/1896_2.png) [@Atlas1](https://pressurewashingresource.com/community/u/Atlas1)\ **Post date:** [January 31, 2021, 1:47am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/14 "2021-01-31T01:47:55Z")
What are your hose lengths? I’ll be running a 200’ continuous length. My portable pump (a 5 gpm with 50’ of 1/2” hose) hits about 35’, and I figured I’d get that much or more with a 7 gpm through 200’ of 5/8. ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:49am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/15 "2021-01-31T01:49:21Z")
200 feet of 5/8 coming off the hose reel… using a 3/4 inch metering value… and running 1/2 inch hose down into my tanks ---
**Author:** ![Oakley](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/oakley/32/23385_2.png) [@Oakley](https://pressurewashingresource.com/community/u/Oakley)\ **Post date:** [January 31, 2021, 1:52am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/16 "2021-01-31T01:52:26Z")
It’s the hose diameter and/or nozzle…stick with 1/2 in hose… even the tank plumbing ---
**Author:** ![Atlas1](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/atlas1/32/1896_2.png) [@Atlas1](https://pressurewashingresource.com/community/u/Atlas1)\ **Post date:** [January 31, 2021, 1:52am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/17 "2021-01-31T01:52:56Z")
Ok, that makes sense. This year, I’m setting up a proportioner with 3/4” lines (1/2” soap line, metered down, of course) going through a 7 gpm Fatboy to 5/8 hose (Unless I get talked into 1/2” , that is) ---
**Author:** ![Sprayingaway](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@Sprayingaway](https://pressurewashingresource.com/community/u/Sprayingaway)\ **Post date:** [January 31, 2021, 1:54am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/18 "2021-01-31T01:54:07Z")
Ok. I will switch up my nozzle since they are cheaper and see if that fixes my issue… im hoping to get close to 50 feet at least ---
**Author:** ![MuscleMyHustle](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/musclemyhustle/32/25298_2.png) [@MuscleMyHustle](https://pressurewashingresource.com/community/u/MuscleMyHustle)\ **Post date:** [January 31, 2021, 2:20am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/19 "2021-01-31T02:20:03Z")
What is your theory behind a 1/2 soap line? ---
**Author:** ![Atlas1](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/atlas1/32/1896_2.png) [@Atlas1](https://pressurewashingresource.com/community/u/Atlas1)\ **Post date:** [January 31, 2021, 2:23am UTC](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314/20 "2021-01-31T02:23:23Z")
Easier to find the metered valve and fittings…As I said, I’ll be metering it down (way down) plus, the surfactant will be diluted in the tank. [Next page](https://pressurewashingresource.com/community/t/7-gpm-fat-boy-12-volt-pump/29314.md?page=2)