Waterproof pump

alaskaguy

I'm on the hunt for a small, waterproof, battery powered pump that is suitable for incorporation into a large-hulled Lego floating boat (such as a 7207).  I want to use it to power a water cannon on a boat that he can play with in the bathtub.

If anyone has any leads, please bring them forth.

Thanks!
ag

Cyberdragon

What you need is a centrifugal inline micro pump. They seem to be hard to find (a lot of "out of stock"). They're also not cheap. The smallest one I can find is this:

https://www.ebay.com/itm/Miniature-Inline-Only-Centrifugal-Micro-Water-Pump-6-VDC-0-4-Watt-2-GPH-HP102-/231981522294

NOTE: It's 6V, so it won't run off a PF pack. Not sure if there's such a thing as a waterproof four AA or AAA pack with switch. You would also need small waterproof wire connectors. And no, no pumps seem to ever include a battery pack unless they're part of some educational kit.

Paperballpark

A water cannon in the bath? Do you have a waterproof bathroom? ;)

CCC

https://www.ebay.co.uk/itm/MINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-/122508463023?clk_rvr_id=1480763122311&utm_medium=cpc&utm_source=twenga&utm_campaign=twenga&utm_param=eyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0=&rmvSB=true&ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F1%2F710-53481-19255-0%2F1%3Futm_source%3Dtwenga%26utm_param%3DeyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0%3D%26utm_campaign%3Dtwenga%26utm_medium%3Dcpc%26ff3%3D4%26pub%3D5574631662%26toolid%3D10001%26campid%3D5338243305%26customid%3D03653e569d5b813ab2a610b99af1e0e0%26mpre%3Dhttp%253A%252F%252Fwww.ebay.co.uk%252Fitm%252FMINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-%252F122508463023%26srcrot%3D710-53481-19255-0%26rvr_id%3D1480763122311&ul_noapp=true

I have a couple of these that are connected to an Arduino to water some plants. They are submersible, small and battery operated. But they are more of a dribble than a jet.  Cost me just under a quid each on aliexpress.

TheLegoMaster35

CCC said:

https://www.ebay.co.uk/itm/MINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-/122508463023?clk_rvr_id=1480763122311&utm_medium=cpc&utm_source=twenga&utm_campaign=twenga&utm_param=eyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0=&rmvSB=true&ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F1%2F710-53481-19255-0%2F1%3Futm_source%3Dtwenga%26utm_param%3DeyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0%3D%26utm_campaign%3Dtwenga%26utm_medium%3Dcpc%26ff3%3D4%26pub%3D5574631662%26toolid%3D10001%26campid%3D5338243305%26customid%3D03653e569d5b813ab2a610b99af1e0e0%26mpre%3Dhttp%253A%252F%252Fwww.ebay.co.uk%252Fitm%252FMINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-%252F122508463023%26srcrot%3D710-53481-19255-0%26rvr_id%3D1480763122311&ul_noapp=true

Could the link be ANY longer?

TheLegoMaster35

CCC said:

https://www.ebay.co.uk/itm/MINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-/122508463023?clk_rvr_id=1480763122311&utm_medium=cpc&utm_source=twenga&utm_campaign=twenga&utm_param=eyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0=&rmvSB=true&ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F1%2F710-53481-19255-0%2F1%3Futm_source%3Dtwenga%26utm_param%3DeyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzY1M2U1NjlkNWI4MTNhYjJhNjEwYjk5YWYxZTBlMCIsImkiOiIxMjI1MDg0NjMwMjMiLCJ0cyI6MTUyMjE4NDU2MSwidiI6Mywic28iOjE1MDAsImMiOjEzOTkyMX0%3D%26utm_campaign%3Dtwenga%26utm_medium%3Dcpc%26ff3%3D4%26pub%3D5574631662%26toolid%3D10001%26campid%3D5338243305%26customid%3D03653e569d5b813ab2a610b99af1e0e0%26mpre%3Dhttp%253A%252F%252Fwww.ebay.co.uk%252Fitm%252FMINI-SUBMERSIBLE-WATER-PUMP-3V-6V-DC-AQUARIUM-arduino-UK-seller-BBC-micro-%252F122508463023%26srcrot%3D710-53481-19255-0%26rvr_id%3D1480763122311&ul_noapp=true

Could the link be ANY longer?

Cyberdragon

80 liters (21 gallons) per hour? Is that even realistic for that tiny thing? Perhaps they meant 8?

CCC

TheLegoMaster35 said: ft

CCC said:

Could the link be ANY longer?

I could have doubled up and posted it twice.