First we need to decide the size of the koi pond. As a general rule you want to circulate to entire volume of the koi pond through the filter once per hour as a minimum. So a 2000 gallon koi pond needs at least a 2000 Gallon Per Hour (GPH) pump. You can go bigger if you like, but it's usually best not to go smaller. Also, consider other aspects of the koi pond, like the size of the filter and the UV. These are best chosen after you decide on the pump to make sure everything is the right size for the flow rate.

Ok, so you have decided on the size of the koi pond and you know the GPH you want for your pump, right? But wait, what about head pressure? Ah, yes factoring in head pressure is an important consideration. Head pressure is basically the height you want to pump the water. The higher you go, the greater the head and the less water the pump will move. Most pond pumps are designed for low head, this makes them far more energy efficient, but you need to factor in how much head the pump can handle and make sure you have the right GPH after head. If the pump is at pond level and the waterfall is 5 feet higher then the pond, then that's 5 feet of head. But other things can increase head pressure as well. Turns or angles in the pipe, pressurized filters and reducing the pipe size all contribute to head pressure. So keep all this in mind before you buy. Also, keep in mind, pond pumps push water far better then they pull water. So placing the pump close to water level or even lower then water level will greatly increase its flow.

Ok, so now you have factored in your head pressure and you know what size of pump to get. So now its time to decide on the type. There are two main types of pumps. Submersible and external. Submersible pumps are much easier to install and generally cost less to purchase. They are also available in very low GPH that you can't find in an external pump. This makes them a good choice for smaller ponds and DIY pond builders. However they also require more frequent cleaning and they tend to use a bit more watts when compared to external pumps. Now external pumps do require more plumbing and they can cost more to purchase, but for most ponds they are a better choice because of their lower maintenance and lower operating costs.

 

Have more questions? Stop by the nursery or call us today (831) 755-1876

 

Lotus are fast growers under the right conditions. They are perennial in USDA zones 4-10 is wintered over correctly. They are sun-loving and should be placed in a location where they will recieve at least 6 hours of direct sun each day. While they will grow in some shadier locations, they need plenty of sun exposure to bloom. They also enjoy warm water temperatures; most of their growth takes place when water temps are at least 70 degrees. Lotus pots should be placed in a shallower area of the pond or raised up to the surface on a shelf so the plant remains warmer. Be sure the pot always at least 2-3 inches of water covering the roots. The plants should be sheltered from the wind to avoid damage. 

 

In the spring, leaves appear first at the surface of the water then slowly emerge to stand above the water. Once the pland begins to show several leaves, begin fertilzing with root tabs, pressing the tabs into the substrate or soil but not directly against the root. As temperatures rise, the beautiful and often fragrant blossoms appear, standing above the leaves with varying numbers of soft petals that open in the morning and remain through the afternoon. The blossoms re-open for 2-3 days before the petals fall and the seed pod remains to harden. Fading, damaged, and yellowing leaves should be removed throughout the season by cutting the stems above the water. Seed pods may be pruned or left to grow as they are quite ornamental. Consistantly cooler temperatures send the plants into a dormant state. In ideal conditions, Lotus can quickly outgrow large pots or take over natural ponds if left unchecked.

Call or email our Pond Department Manager, Jeramey McAffery to set up an appointment at:  jeramey@mcshanesnursery.com or 831-455-1876