The Renovation of the Old and Small, Chapter 7: Living in the old and small, you must be willing to spend money on playing in the water!

Author: Brother Qiang’s perspective

Brother Qiang’s perspective, reflection on the life of a stingy dad.

Think deeply about various scenarios in life consumption, based on sharing a down-to-earth outlook on life, I believe you can find your favorite parts.

In the renovation of the old and broken home, the hardware part actually wanted to save as much as possible, so no cumbersome decoration was used. The materials used did not deliberately pursue the configuration of the cow.

But in the process of purchasing large electrical appliances, according to my personal experience, the most money should be spent on playing with water. Of course, it’s not about water guns or the like, but the tap water we use every day. Especially for bathing, after being used to the pressurized waterway of high-rise residential buildings, it is really difficult to accept that kind of prostate-like water outlet style.

So today, I mainly talk about the problem of “playing with water” in the old and young. Personally, I don’t think it’s really worth it.

Recommended in the past

First, the necessity of a booster pump

When it comes to water pressure, many people may have no idea, after all, they live in high-rise buildings There are many people in the house, and the high-rise buildings are equipped with special pressurization equipment.

In simple terms, it means that when you take a bath, the water flow can give the pressing force to the skin. In a pressurized environment, water spray is enjoyed, while without pressurization, it may only be dripping.

Usually the water supply pressure of municipal tap water is 0.07MPa (equivalent to a water pressure of 70 meters high) ). The state stipulates that the pressure of residential water supply shall not exceed 0.35MPa, which is 35 meters. It can meet the highest level of about 4 floors in ordinary buildings. For common old residential buildings with a total of five to seven floors, the water tank on the top floor must be used for water supply above the 4th floor. Generally, the higher the floor, the lower the water pressure in the water tank. For example, in the old and small in Shanghai, the sixth floor is generally the minimum water pressure, and it is really impossible without a booster pump.

If the water pressure of the water supply meets the data, and the water pressure is reduced, it is usually because of corrosion and blockage in the pipeline, or because there are too many turning points in the waterway, and there is a water outlet in the middle, which causes the water pressure to drop. . It’s time for specific repairs.

Because this renovation is located on the fourth floor, the water pressure can only be enough to allow the water to fall freely without the slightest spray force after installing the shower with a large nozzle. This also made me determined to add a booster pump.

Because there are about four water outlet points in the whole house, after using pressurized water, I still hope that the water pressure of all water outlet points can be increased, so it is necessary to choose a whole house pressurization scheme. There is no solution to pressurize the shower separately.

In terms of booster pump purchase, I have searched a lot of places, but I feel that they are all shared, or Hard and wide, and the people around me don’t seem to have had much contact with such things, so it is difficult to have a reliable recommendation plan.

Ask the decoration foreman, he said let him buy it, what brand he buys, and he said that he usually buys the domestic New Territories, Grundfos or German Wilo and the like. As for the purchase of large Yang Cheng (that is, the supercharging capacity), the foreman suggested 30 meters.

I personally think that this purchase process involves not only the selection of brands and models, but also the detection of the current situation of water pressure at home. Otherwise, it will not only cost more, but may also cause explosion. Tube. Especially when the booster pump is working, there is still an unavoidable trouble-noise. If there is no actual experience, or a reliable sharing, it is likely to fall into the pit.

So, I was really confused when I first started shopping. Next, I will describe my solution process in detail.

Second, measure the water pressure

In terms of water pressure detection, I was confused and didn’t want to check. Later, I found that no one gave a reliable answer, so I had to actually measure it.

The first thing to do is to buy a pressure gauge, this thing is relatively simple, and the baby will find it everywhere. When I bought it, due to the epidemic in Shanghai, the first one was not willing to ship it to me, so the second order was bought. The price is not expensive, basically around 20 yuan, and it also comes with a special pressure relief valve. It won’t hurt even if you use it once.

The connection of the pressure gauge is shown in the figure. 4-point interface, you can easily connect the shower pipe without special dismantling of some pipe parts.

Dial There are two sets of readings on the scale, one is common mPa, the other is PSI, we will not talk about the specific conversion, we will refer to a common mPa.

Generally speaking, 0.1mPa is converted into 1 kg of water pressure, which is also equivalent to 10 meters of water pressure.

After the actual measurement of this watch, the water pressure of the high-rise residential building can reach 0.5mPa, so it is no wonder that I feelSo comfortable.

The water pressure I measured on the fourth floor of the old building was only 0.1mPa! ! !

This water situation is relatively poor, if there is no faucet bubbler, really Equivalent to dripping water.

So, after testing, the current situation of water pressure is relatively clear.

The pipeline water pressure of 0.1mPa, if you want to achieve the effect of a large shower, at least 0.4mPa, in this case, you need to pressurize 0.3mPa, that is, the booster pump At least 30 meters of head can be provided.

With this conversion, you will have a purchasing idea. When selecting the lift of the booster pump, pay attention to the maximum lift instead of the rated lift, because when the actual water is used, there will be multiple water outlet points, which requires the booster pump to continue to increase the output. The maximum lift is more for reference.

But be careful not to pressurize unrestrictedly, otherwise it may cause a pipe burst.

Third, buy a booster pump

There are many reference guides in this regard. I will not be a porter, and I will mainly talk about the changes in my thinking .

The old man’s house is on the sixth floor of the old and small, and the booster pump has always been inseparable. I used to buy a booster pump from the building materials city. Basically, it worked very well when it was newly installed. Years, I feel that the efficiency has decreased, so it has been replaced once.

Because this kind of machine is used every day after all, and the switch is very frequent. If the quality is not good, the follow-up troubles will be very much. So I prefer to choose well-known big brands, mid-to-high-end products. In terms of price, I don’t mind being more expensive, one step is complete, and the effect is full.

Ville

At the beginning of the selection, I looked at Ville a lot, after all, it is a German brand.

At first, this 601EH was more intentional, and it is also a model recommended by many UP masters. But when I checked the water pressure, I found that her head was not enough. If you want to increase the lift, it will be accompanied by an increase in noise, and some references provided in the comment area really make me a little worried.

This product of Wilo also makes me have a heart problem, that her automatic controller has to be purchased separately, and it is not cheap. The so-called automatic controller is similar to the automatic start-stop device of a car. When there is no water flow, the machine is on standby, and when there is water flow, it will start to turn sharply. Without the installation of an automatic controller, the machine can only be kept running at full capacity and the pipes are always pressurized.

According to professionals, the essence of Wilo lies in the fully imported controllers, and most of the domestic ones are domestically produced, so the actual effect may be discounted.

In fact, for booster pumps, the importance of automatic control is not less than head power.

New Territories

After that, I began to pay attention to this little white whale in the New Territories. To be honest, I was attracted by the appearance. Even if it is not hidden in the cabinet, it does not affect the appearance.

Using frequency conversion and constant voltage technology, it can reduce noise well. And can adjust the pressure output by itself. The experience of using it is definitely a lot better than any booster pump I’ve seen before.

However, her maximum lift is only 25 meters, which is far lower than my needs.

Gwitt

Finally, I found such a machine when I watched the UP master video about the booster pump countless times.

Intelligent automatic, permanent magnet frequency conversion, and the output power is large enough to provide a maximum head of 40 meters.

The only thing that worries me a bit though is that the brand seems a bit new. And when I searched at the same time, there was also a brand called Shidandi. The other machine made by the two companies is almost identical. I was attracted by this machine at first:

What can make me relax my guard is that only Gwitt has opened a self-operated store on JD.com. However, I didn’t buy it from the self-operated store in the end. For various reasons, I won’t go into details here.

In short, if you want to buy such a large item, it is recommended to continue to pay attention to the price. If you encounter a big promotion, especially pay attention not to encounter a secret price adjustment.

Fourth, installation and use

After a long period of price keeping and tangled orders, the machine arrived. When placing the order, I directly purchased the installation service for 150 yuan.

Because the machine could not be installed at the first time, it has been kept in a sealed state, waiting for the installation master to pass.I opened it myself, and I recorded the whole video. If I found a problem when I opened the box, I would chat with the customer service in time.

When the master saw this machine, he always praised it. It is a relatively high-end model with less installation and the quality is absolutely acceptable. It can be called the Rolls-Royce of the booster pump . Immediately I was looking forward to using it.

The master is checking the condition of the machine and accessories. After inspection, the two original adapters are completely useless, because the diameter too big.

The cooling holes at the rear, this machine generates a lot of heat. If it is idling, it will also be damaged, so there are special protection settings for idling.

The two adapters provided on site have an official price, but I still feel that the equipment provided by the machine is not very reasonable.

The installation location is set at Bottom of sink. The decorators have also left the pipelines when they are arranging the pipes. After passing through the booster pump, the pipelines of the whole house are pressurized. This work has to be thought of and planned ahead of time.

This is in preparation for truncation for welding.

Please also look at the details, because you need to reserve the position of the water purifier in the future and prevent supercharging The pump is blocking too much storage space.

Connect the pipe and choose the recommended metal elbow, so that later Maintenance will also be convenient. If you choose hard tube welding, it can also be operated, but the process is very troublesome. I used a total of three connecting pipes for this machine.

All installations and connections are in place, and it can work when powered on. I haven’t had a chance to study the operation menu carefully, so I temporarily debugged it by the installer.

Digital display part, the left is the existing pressure in the pipeline, the right is the target pressure. With the plus and minus signs, you can set the target pressure yourself. Such a working mode can be convenient for users to choose freely, and also save more power.

When the faucet is turned on , The machine has a process of starting pressurization, so the water flow at the beginning is not very strong, and the jetting mode is started later. Later, I tried to open multiple taps at the same time, and I could hear the sound of the booster pump speeding up.

I didn’t take special photos of the shower head, and the actual effect was also praised by my wife.

while In terms of noise, it can be said that even if the cabinet door is not closed, it will not feel noisy. If it is closed, there will be no sound. I also wanted to put a sponge pad on the bottom of the machine before, but now it seems that there is no noise at all. It is necessary.

Summary

After the installation, you need to settle the accessories fee on the spot, and the total payment is more than 200. After this calculation, the installation fee paid before is about 350. Some people may think that the accessories are expensive, I think this may be more expensive than buying a baby or a Baba, but with the endorsement of a regular installation company, these responsibilities will be borne by someone, I am willing to buy it with confidence. strong>

The machine itself, caught up with the 618 event, and finally got 2000. The overall expenditure is acceptable, and the effect is really unexpected.

In In the process of choosing a booster pump, I deeply felt that this thing has a wide range of practical uses and is very important, but I suffer from no specific content reference that is more suitable for users’ pain points. So I wanted to write down this experience, hoping to give it to those who need it. For reference.

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Thanks, I am a strong brother.