![Water pump now runs for half a second every couple of minutes. So I fixed an air lock and got it up and running, but now it's coming on briefly but regularly. Water pump now runs for half a second every couple of minutes. So I fixed an air lock and got it up and running, but now it's coming on briefly but regularly.](https://preview.redd.it/x4cvbgp2hjn91.jpg?width=1080&crop=smart&auto=webp&s=fefb60084dde772c0ee92f070ab39f58bf2c449c)
Water pump now runs for half a second every couple of minutes. So I fixed an air lock and got it up and running, but now it's coming on briefly but regularly.
![Boat Bilge Pump, Fully Automatic Air Lock Built in Float Switch Bilge Water Pump Detachable Filter for Boat Accessories(1200GPH) : Amazon.co.uk: Sports & Outdoors Boat Bilge Pump, Fully Automatic Air Lock Built in Float Switch Bilge Water Pump Detachable Filter for Boat Accessories(1200GPH) : Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/I/61nC8nO52pL._AC_UF894,1000_QL80_.jpg)
Boat Bilge Pump, Fully Automatic Air Lock Built in Float Switch Bilge Water Pump Detachable Filter for Boat Accessories(1200GPH) : Amazon.co.uk: Sports & Outdoors
![Schematic of an entire air lock in a small-diameter pipe system (Z u :... | Download Scientific Diagram Schematic of an entire air lock in a small-diameter pipe system (Z u :... | Download Scientific Diagram](https://www.researchgate.net/publication/314703315/figure/fig1/AS:470927734513664@1489289329058/Schematic-of-an-entire-air-lock-in-a-small-diameter-pipe-system-Z-u-upstream-water.png)
Schematic of an entire air lock in a small-diameter pipe system (Z u :... | Download Scientific Diagram
![Bilge Water Pump, Detachable Filter 12V Boat Bilge Pump Air Lock Fully Automatic for Boat Accessories(1100GPH) : Amazon.co.uk: Sports & Outdoors Bilge Water Pump, Detachable Filter 12V Boat Bilge Pump Air Lock Fully Automatic for Boat Accessories(1100GPH) : Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/I/61IwrgW2SxL.jpg)