If you haven’t really
considered the water pump to get for your tank, then you are probably
researching about pumps. Since you are reading this article you are probably
also wondering what a submersible pump is? This article will clearly explain
what a submersible pump is and when it is used enabling you to decide whether
they are for you.

What are Submersible Pumps?

Submersible pumps as the
name suggests are made to be fully submerged in water. It is a centrifugal
water pump, meaning it has a motor that powers an impeller designed to rotate
and push water outwards. The motor is located within a waterproof seal and
closely coupled to the body of the pump which it powers.

Pumps that are designed
to be submersible are placed within the reservoir of water that needs pumping
out. As such, they are often used for drainage in floods, sewerage pumping,
emptying ponds or even as pond filters. Filtration pumps found inside fish
tanks are a type of submersible pump. In the case of a water tank, submersible
pumps are placed inside the actual tank to pump the water out to where it is

A major advantage of submersible pumps is that they are very quiet since the water absorbs the noise. They are also more efficient since they don’t need a lot of energy-sucking in the water that they are submerged within.  Disadvantages include the seal corroding over time allowing water to get into the motor and the seal making motor access and repairs more difficult.

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When to Use Submersible Tank Pumps

Submersible tank pumps are seated at the bottom of your tank and designed to pump water upwards through the top of the roof. Given this, they are generally used in underground tanks where water needs to be pumped up to the surface.

This is especially important to consider if you will be installed in an above-ground tank. Submersible pumps in the industry can be installed in above-ground tanks, however, you need to keep in mind that your rainwater will be plumbed in from the top. If you also want to directly access water from your tank, a tap can still be fitted to your tank, or you might simply opt to connect your rainwater to nearby taps.

A downside to having submersible pumps inside your water tank is with accessibility should maintenance or a replacement be necessary. They also consume a small amount of space inside your tank meaning a few liters less water, but compared to their invisibility and quietness such is quite negligible.

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