Yes that would work. Only thing you have to take into consideration it the vibration from through machine. Would it vibrate and make the plumbing crack That’s why i use the 1 foot of hose. Also i found it helps to take the top off the tank with direct drive… Now with all that being said get a gear drive and don’t have to worry about it… 
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I did it the same with my direct drive.
If u could that would be great, ill be hooking mine up to tank soon
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Pulling water from a tank
Be vary careful using direct drive and using a tank source for water
Will direct drive pull water from a tank?
Short Answer: NO, very few direct drive pumps will actually “pull” water from a tank. Ones that manufactured to do so will be clearly marked on pump and cost thousands “just for the pump”
Long Answer: while people on here say they have done it, there actually not “sucking” water from the tank its being gravity fed. This can be done with a large enouph feed hose and as long as the height of the tank is above the macine allowing gravity to feed the macine. This is a very dangerious way to run if your not experienced as water levels in tank and height of tank can also be a factor in the gpm.
Belt drive will actually “Suck” without gravity. Last year we had major water restrictions and a nabor was going to drain there pool. I threw my hose in the pool and recycled the water pressure washing there house. Belt drive pump will suck the water and will generally do so without issue or overheating unlike direct drive pumps.
Direct drive also have a longer lifespan due to less vibration and heat.
Touch a direct drive pump VS a belt drive pump after running for an hour. you will feel the difference
Also insure your setup includes a external unloader. This allows you to put down the gun and allow the machine to run without it burning up. most store bought machines do not include one but are easy to retrofit yourself.
