In previous articles, from the perspective of farmers, we discussed one by one the pitfalls of oxygenators: why they are prone to failure, how troublesome the maintenance is, how expensive the electricity bill is, how to prevent them during thunderstorms, and how they can save fuel and be lightweight and convenient.
This article does not elaborate on the principles. Instead, we have compiled them into a list. Before you buy, tick the ones that apply. This way, you will basically avoid major pitfalls. By the way, let me mention the machine we made.
Oxygenator Purchase Pit Avoidance Checklist (8 items)
Before purchasing, check each item one by one:
In three sentences, ask the boss directly
If you find the list too long, just remember these three sentences:
“Does it need fuel? ” — If it does, it will be troublesome and pollute the water later
“Is it protected against lightning? Can it withstand unstable voltage? ” — If you can’t answer, you will be nervous during thunderstorms;
“Can it be repaired locally? Where is the nearest service point? ” — If you only say “send it back to the factory”, be cautious.
Those who answer these questions directly and clearly and can be written into the contract are basically correct.
Don’t just compare the bare machine price, compare the “total cost for one year”
The machine price + electricity cost + maintenance cost is the real cost.
A machine that is 300 yuan cheaper, has an electricity cost of 1,000 yuan per year, and needs to be sent back for repair when it breaks, actually costs more when calculated in total. Being able to afford it does not mean it can be used affordably. When compared on an annual basis, it is fair.
By the way, let me mention what we made. Compare this list with the multi-functional oxygenator item by item, and it is basically all correct:
Lightweight, can be installed by one person
Protected against lightning strikes, with its own lightning protection design, and with a frequency converter for more stability
Local repair available, there is a service point nearby, and the spare parts are easy to match
Super energy-saving, official data shows an energy saving of over 30%
Hard motor, custom-made motor, more powerful and longer lifespan
Can be equipped with a frequency converter for smooth startup/phase protection / wide voltage range
Use high-quality materials, long service life, durable
I don’t call it “the best”. It is the machine that we, at the frontline of the pond, filled all these pitfalls one by one and carefully made after doing so. You can judge it yourself against the checklist and it will be more accurate than listening to me.