He was 23, had just set up his own carpentry business and was doing well. He was learning plumbing, carpentry and tradesmen's skills. But don't ignore plumbing or carpentry - there are skill shortages in the trades that will worsen. There are vacancies across the UK in roles including carpentry, plumbing and welding.
There are several reasons why koi jump out of the water. One of the most common is parasites. The parasites cause itching and pain. The fish will leap out of the water and also rub on things in the pond in an attempt to escape the itching. If your koi have parasites, you can treat with a medication called praziquantel. It is sold on pet stores and pond supply stores. Koi also will do a lot of leaping out of the water when they are spawning. Lot of chasing goes on. The females may get tired of it and leap out. Males trying to win the females may also jump. Finally, they may jump out because they are scared.
A gravity fed koi pond filter is an external filter that sits on the shore somewhere. The water that comes from the pond pump enters in this filter near the top and flows through filtering media products to the bottom of the unit. The water that gets discharged from this filter will need to flow down to the pond.The water cannot flow uphill (or against gravity) to any type of water feature.ou will need electricity near the pond to run the pump and the optional UV (ultraviolet clarifier or sterilizer). The first kind of pond filter is a submersible filter. This can be located inside the pond. On one end of it (or even within the filtering unit) is the pump with a tubing connected to its discharge side.