https://www.wertome.com/product/ngm-selfpriming-jet-pump/ngm-home-appliance-selfpriming-jet-hydraulic-water-pump.html
Deep well Self-priming water pumps installed above groundwith the jet body submerged guarantees function even whenthe static level of the well water falls as far as 35 meters belowthe level of the installed pump. So they are extremely reliable, economical and simple to use and find many usages in domesticapplications and the automatic distribution of water fromsmall and medium-sized surge tanks, watering gardens, etc.