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  #1  
Old 27-07-2014, 10:02 PM
Richard L Richard L is offline
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Default New water tank system

We are a new anorexia tank: 5L. Might work for some but fun to put in to the market place.
Please give me some feedback and comments, gratefully received, good or bad .

http://www.aquamist-direct.com/806-6...th-bracket-5l/

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Old 28-07-2014, 01:11 PM
Dust Dust is offline
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Default Re: New water tank system

Assumptions - The holes in the middle are mounting point? Is it baffled? For a straight liner it would seem to be a great choice, but for a turner I would hope that it is baffled. Wondering if tilting it 90 degrees and mounting the low level and pickup on what is now the bottom might not be a better idea. Just initial thoughts. Looks like a repurposed water container to me.
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Old 28-07-2014, 05:56 PM
Richard L Richard L is offline
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Default Re: New water tank system

Thanks for chiming in.

The four dimples are for keeping the tank stay in shape. Large plastic surfaces tend to loose its original shape in warm environments and filled. The dimples on each side of the tank are thermally welded together during injection moulding. They form a strong a single air-tight wall. If you wish to use those dimples for mounting purposes, you need to drill a couple of through holes.

I have worked on this tank for a while now. I shared your concern regarding liquid sloshing around during corning. As the width is only 2.6", side-way sloshing is of no concern. If the thin face is in the line of travel.

The tank is baffled no chance of sloshing in any direction. I will make a video to demonstrate it, time permitting.

The tank is a perfect square, 13" x 13". I am not sure your comment about tilting it 90 degrees. Please do explain.

Richard
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Old 28-07-2014, 06:09 PM
Dust Dust is offline
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Default Re: New water tank system

If it wasn't baffled, I was suggesting turning it so that the water would have a gravity point. With the square bottom the water could slush left and right (again I didn't see or read about a baffle) so the suggestion for a cone at the bottom with the fill port at the top. If it's baffled it's not a worry.

I take it the weight isn't enough that it needs mounting from the top as well?
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Old 28-07-2014, 06:24 PM
Richard L Richard L is offline
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Default Re: New water tank system

The baffle is a long vertical dividing wall from the top (filler cap) to the bottom. The wall is approximately 3" from the outlet ports face.

The wall where the dimples met is approximately 3mm thick. It is debatable if it can withstand a negative 5G on a full tank (5kgs). How many G's on a 30 mph crash test?

Anyway, we are a bit concern about using just two 6mm bolts of the drilled dimples. We supplied two acetal stand-offs to filled the voids on the dimples, giving extra support. These stand-offs only comes with our purpose made bracket.
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Old 28-07-2014, 06:45 PM
Richard L Richard L is offline
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Default Re: New water tank system

See the two stand-offs inside the back dimples?




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Old 29-07-2014, 06:56 PM
Richard L Richard L is offline
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Default Re: New water tank system

anti-sloshing video:

http://youtu.be/gXszFa3MkKM
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Old 30-07-2014, 12:50 PM
Dust Dust is offline
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Default Re: New water tank system

I saw the video posted last night on youtube. It didn't look to anti-slosh until I focused on the right side.
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Old 30-07-2014, 01:24 PM
Pit Viper Pit Viper is offline
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Default Re: New water tank system

I think it's a great solution. Considering the thinness, it also wouldn't take much modification to stack a few side-by-side if you needed added capacity.
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Old 30-07-2014, 04:35 PM
Richard L Richard L is offline
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Default Re: New water tank system

Quote:
Originally Posted by Pit Viper View Post
I think it's a great solution. Considering the thinness, it also wouldn't take much modification to stack a few side-by-side if you needed added capacity.
This planned already but we have not solved the unequal height caused the protruding bolt head if a water pump is assembled below. There will be a height difference of ~2mm. May be the rounded bottom of the tank wall provides a perfect solution.

We will supply four double length acetal stand-offs and four longer bolts.

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