# Tar tank design
**URL:** http://forum.driveonwood.com/t/tar-tank-design/3033
**Category:** General Discussion
**Created:** [February 10, 2017, 11:22pm UTC](http://forum.driveonwood.com/t/tar-tank-design/3033 "2017-02-10T23:22:49Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@kmrland](http://forum.driveonwood.com/u/kmrland)
#### Post date: [February 10, 2017, 11:22pm UTC](http://forum.driveonwood.com/t/tar-tank-design/3033/1 "2017-02-10T23:22:49Z")
I have a one gallon tar tank for my truck that i am about too install, i caint find the page in the book on any details of fab. Do i need some sort of seperator plate or does the hopper drain come in at bottom of tar tank , caint find the info in the WK book.??Thanks if any one has the info on the tar tank discription plumming.
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### Author:  [@Chris](http://forum.driveonwood.com/u/Chris)
#### Post date: [February 10, 2017, 11:28pm UTC](http://forum.driveonwood.com/t/tar-tank-design/3033/2 "2017-02-10T23:28:27Z")
You’re looking for section 3.25, Hopper Condensate Tank. Page 98.
Hopper drains into the top. There’s a standpipe from the bottom that allows the water to drain without disturbing the tar that’s settled out. A bigger pipe flush to the bottom drains everything, tar first.
If you have any room at all, I’d make a bigger tank. 1 gal will fill up very quickly.
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### Author:  [@kmrland](http://forum.driveonwood.com/u/kmrland)
#### Post date: [February 11, 2017, 12:03am UTC](http://forum.driveonwood.com/t/tar-tank-design/3033/3 "2017-02-11T00:03:45Z")
Ok Chris thanks for the info i will use a 4 or 5 gallon tank then. I am going too check the book and mark that page so as too find it.Ps i found the page and it was just as you said, i am not much of a reader i gess. I took speed reading in 7th grade though it never helped much.