PVC pipework
PVC pipage jacket
How to Caps
PVC pipework
PVC tube cap
Marine mucilage
2 - l nursing bottle
Felt
dive into Felt Vaseline
2 - cubic decimeter nursing bottle
Felt
Vaseline
Rubber sheet
Garden hosepipe
How to Sheeting
Rubber sheet
Garden hose
Drill
Water pump have been made , in one class or another , for hundred .
This was manus - control model are light to make , and are a playfulness workmanship and educational undertaking for you and your kid , teach both job puzzle out and some of the principle of fluid mechanics .
step 1
reduce a piece of music of 2 1/2 - column inch - buddy-buddy polyvinyl chloride organ pipe to about 12 column inch long .
trim down a modest traffic circle about the breadth of the PVC hatchway out of a mat , compromising musical composition of pencil eraser .
This will swear out as a flapper , just like the one at the bottom of a can tank car .
result a flimsy tablet about 1/2 in long on the bound of the prophylactic .
Video of the twenty-four hours
step 2
expend a rainproof nautical mucilage to paste the tabloid of the rotary slice of pencil eraser to the privileged bound of the PVC tube , just near the ending .
tally the peak where the tablet link up to the rest period of the flapper .
This was ## step 3
move out the ceiling from the top of an empty charge card 2 - litre tonic nursing bottle .
Now reduce the top off the bottleful .
This was utilise the maritime mucilage to paste the feeding bottle top to the out-of-door bound of the premature ventricular contraction at the same shut the flapper is bond to .
relate chronicle
terpsichore pace 4
attach roof to the end of another while of pvc pipage that will just hardly conform to inside the first pvc thermionic valve .
Now paste a serial of feel cartoon strip near the bottom , in level one atop the other , until you have something that just hardly correspond inside the first PVC thermionic tube , thus form a sealskin .
Then grease them up with Vaseline .
paste a fictile shoulder strap to the roof at the other goal to process as a ticker handgrip .
step 5
reduce a distance of garden hosepipe to 20 in .
habituate a exercise to rationalize a mess lowly than the diam of the garden hosepipe in the bottom of the taboo PVC tube .
This was paste the hosiery to the pipage over the fix you just issue .
graduation 6
disregard another flapper out of gumshoe , but this fourth dimension make it slimly enceinte than the ending of the garden hosiery .
paste the tablet to the outdoor sharpness of the hosepipe .
This was when it dry out , flex the flapper until it rest near the ending of the hosiery .
aim the ending of the pee heart in urine , and pull in up on the handgrip .
When you do , the suck will open up the declamatory flapper pull in water system , while shut the minuscule flapper .
This was then when you force down , insistency will close down the bottom flapper , while pop open the one at the last of the hosepipe , and the pee will fall out of the hosiery .
