Under Deck Slip Tank Help

skegpro · Dec 28, 2018

Ballzdeep said:
Skegpro what kind of deck you running? I to want to add a tidy tank under my deck as well. I have a X deck and the front leg is solid brace from side to side that takes up a few inches up front and with my ramps in i only see a possible 2-3" of space where i could get a hose lined up to cut a trap door. I assume you just have to slide the ramps back a few inches to get enough room to access the filler cap? Anyone have pics of the tank under the deck, maybe view from the top?

I am running a x deck too.

I was looking at it this morning and you can pull the deck back about 4-6" and still close the tailgate. So there definitely is room to put the cap up and through the deck. (F350)

I am going to go the other route and put the fill neck at the tailgate end.

(Gonna get a provisional nozzle at the front just in case and just plug it off for now.)

See how it pans out.

How big are you thinking of going?

Rutz welding in Leduc is gonna build me a 50"x42"x13" for $900 ish in carbon steel.
($1150 for alluminum.)
Should be about 400 liters ish.

Ballzdeep · Dec 28, 2018

skegpro said:
I am running a x deck too.

I was looking at it this morning and you can pull the deck back about 4-6" and still close the tailgate. So there definitely is room to put the cap up and through the deck. (F350)

I am going to go the other route and put the fill neck at the tailgate end.

(Gonna get a provisional nozzle at the front just in case and just plug it off for now.)

See how it pans out.

How big are you thinking of going?

Rutz welding in Leduc is gonna build me a 50"x42"x13" for $900 ish in carbon steel.
($1150 for alluminum.)
Should be about 400 liters ish.
//uploads.tapatalk-cdn.com/20181228/7b7b9225f7fe274b530bec66bc1fadc0.jpg

I was thinking of half that size, closer to 200l. i only been searching kijiji for used tanks, nothing fancy. thanks for the input.

SHREK1 · Dec 28, 2018

skegpro said:
I am running a x deck too.

I was looking at it this morning and you can pull the deck back about 4-6" and still close the tailgate. So there definitely is room to put the cap up and through the deck. (F350)

I am going to go the other route and put the fill neck at the tailgate end.

(Gonna get a provisional nozzle at the front just in case and just plug it off for now.)

See how it pans out.

How big are you thinking of going?

Rutz welding in Leduc is gonna build me a 50"x42"x13" for $900 ish in carbon steel.
($1150 for alluminum.)
Should be about 400 liters ish.
//uploads.tapatalk-cdn.com/20181228/7b7b9225f7fe274b530bec66bc1fadc0.jpg

make sure you get that tank baffled or you will be sorry

skegpro · Dec 28, 2018

Ballzdeep said:
I was thinking of half that size, closer to 200l. i only been searching kijiji for used tanks, nothing fancy. thanks for the input.

https://www.kijiji.ca/v-business-in...nk/1406118024?enableSearchNavigationFlag=true

skegpro · Dec 28, 2018

SHREK1 said:
make sure you get that tank baffled or you will be sorry

Oh thanks for reminding me.
I need to double check that.

SHREK1 · Dec 28, 2018

I run 3 baffles and still feel it but my holes are a little too big

skegpro · Dec 28, 2018

SHREK1 said:
I run 3 baffles and still feel it but my holes are a little too big

Probably solid wall baffles with the corners cut out would be best?

Ballzdeep · Dec 28, 2018

i have to ask the dumb question....wert the ferk are the baffles?

sirkdev · Dec 28, 2018

Plates in the tank to slow down the tidal wave when not full

skegpro · Dec 28, 2018

SHREK1 said:
I run 3 baffles and still feel it but my holes are a little too big

This tank will have 2 cross the truck and one the length of the truck.
Solid baffles with clipped corners.

LBZ · Dec 28, 2018

I’ve been running this style of tank for a dozen years. I’ve had the filler under the one side extension on the last tank and this tank it comes through the deck just inside of the left ski when one sled is on the deck. I have a 6’6” box with two 6’ ramps so there is plenty of room. It’s an old STF deck.

The last tank was 160 litres this one is 240. Only thing I would do differently is put baffles on either side of the filler to keep it square. Aluminum pulls when it’s welded so my filler neck is slightly cocked but not terribly. It is also easy for your welder to make something so you can lock your cap. Or do the trap door thing with a lock on it too. I’ve never had a problem with ice coming through the deck. Biggest problem I see with a remote fill is 1. it may fill slower and burp a lot as you fill and 2. you won’t know it’s full till it’s almost two late. Both will make a mess.

I welded a 90 into the filler neck on the truck, and ran the plumbing through a bulkhead fitting in the floor to a pump and filter. I also have an electric shut off valve and everything is on a timer in case I forget about it-which I have in the past and made a mess!! You can have it gravity feed but once the truck tank is filled if the remaining fuel in the slip tank warms up it will build enough pressure to push past the relief in your cap and again make a mess. Done this as well if you don’t shut the tank in.

skegpro · Dec 28, 2018

That's a nice setup.^

pete gads · Dec 28, 2018

I run a 2011 gmc short box extended cab. I have a 300 litre tank at front of box with fill cap on top but low enough tonnue cover still fits. Free flows through hose to filler hose on main tank. I have a 8in x 8in lid on deck that open and fill tank. Can fill tank right to top of filler cap. Can go from edmonton to revy and back pulling 4 place trailer.

SHREK1 · Dec 28, 2018

pete gads said:
I run a 2011 gmc short box extended cab. I have a 300 litre tank at front of box with fill cap on top but low enough tonnue cover still fits. Free flows through hose to filler hose on main tank. I have a 8in x 8in lid on deck that open and fill tank. Can fill tank right to top of filler cap. Can go from edmonton to revy and back pulling 4 place trailer.

Ya sure makes it nice, I through in a solenoid instead of free flow, free flow kicks an engine light on the 6.7 fords. I teed a free flow line just in case the sole of piles up. Never stuck.

sledneck__11 · Dec 28, 2018

I use the rds kit And free flow on my 17f350 never thrown an engine code yet in 34xxx kms

SHREK1 · Dec 28, 2018

sledneck__11 said:
I use the rds kit And free flow on my 17f350 never thrown an engine code yet in 34xxx kms

thows a light on buddies 2010, my 2013 and my 2016 usually when slip tank is full.

sirkdev · Dec 28, 2018

Good idea on the solenoid for sure. I have had fuel leak slightly out the sending unit gasket before on the 16’s and down superduty. That gasket is not designed to take pressure. I have not had the code but heard of it and it makes sense.

Just for info I’ve had a 2011,2012,2015 f350

sledneck__11 · Dec 28, 2018

Rds have a little ball and once it fills in the filler neck it pushes the ball up
shutting off the gravity feed, been running this kit on my 12 6.7 cummins and now my 2017 f350 with no issues
https://m.northerntool.com/shop/tools/product_200315501_200315501hotline=false&utm

LBZ · Dec 28, 2018

SHREK1 said:
Ya sure makes it nice, I through in a solenoid instead of free flow, free flow kicks an engine light on the 6.7 fords. I teed a free flow line just in case the sole of piles up. Never stuck.

Same with my LML Dmax. My classic body style dmax just made the gauge go to empty and the miles to empty show dashes till the fuel level in the tank started to drop again.

LBZ · Dec 28, 2018

Pic of my pump and filter setup.

Under Deck Slip Tank Help

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