a cheap waterpistol upgrade for waterpistols with a big watertank. its so simple and cheap that it could be done in under a minute!!!

First off you need to find a water pistol with a large water tank and a bottle top.

Step 1: The Glue

you then apply water tight glue to the bottom of the bottle top and stick it on to the top of the tank
Pretty nice, you could make more than one REfill on the same gun with this. <br>
Seems good, but errrr... I recon we can do better, Get a black solar water shower thing ($12.00) And put a tube from that staight into the lid of the waterpistol. Put the back on your back. They all have valves so that you can fill and refill over and over. It will go into the pistol as long as the bags on your top part of your back and the pistol is at your waist. -Cheers, Chris
pritty good, ill be shure to try this

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