🛠 Manage without hiring pros! 3 ultimate items chosen by share house operators

What you thought was a minor issue can escalate into a bill of $700 to as much as $7,000 if you have to call in professionals.
In share house management, you will inevitably face equipment malfunctions and unexpected accidents sooner or later—
If you can handle them yourself before calling in the pros, you can minimize both costs and trouble.
This time, I will introduce 3 items that are "truly indispensable" for operations based on our company's actual experience!
If this is well-received, I would like to continue introducing items, so if you liked this article, please like it 🤚

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🔐① Smart Lock (Sesame 5) | An operator's ally that brings key loss and forgetfulness troubles close to zero

▫️There was a “blind spot” in using key boxes for share house key management.

In the past, our company used key boxes to share entrance keys with tenants.
It was an analog management method where they would take the key out when going out and return it after coming home.
While it seemed like a simple and low-cost system at first glance,
• Getting locked out after taking the key inside the room
• Going out after someone took it and forgot to return it
were
actual trouble cases that occurred, leading to situations where “other tenants couldn't open the entrance.”
Furthermore, physical keys are hard to protect from duplication and loss risks, and it is an operational burden to take time for key management every time someone moves in or out.

▫️The trigger to rethink the “very concept of a key” — Introducing smart locks

To fundamentally resolve these issues, we introduced the **Smart Lock “Sesame 5”**.
Sesame can be installed just by covering the existing thumbturn, requiring no tools or wiring work.
It is packed with features suitable for modern share houses, such as unlocking via smartphone app, auto-lock settings, and management of unlocking history.

Especially in environments like share houses where an unspecified number of people come and go,
a system where “the location of the key is clear and you can record who came and went and when”
also acts as a deterrent to trouble.

▫️Why I chose Sesame 5 | This was the one I could trust in field operations

I have actually tried products from multiple manufacturers for smart locks, but **the reason I finally settled on Sesame 5 was its “compatibility.”**
• Supports thumbturn shapes unique to Japan
• Installation support possible via 3D-printed adapters
• Expandability with Wi-Fi options, NFC, etc.
• Adding/removing users during move-in/move-out is just an app operation

In addition, in my experience, the support response is among the fastest in the industry which is a major source of peace of mind.
The system where they don't just stop at “installation” but also help with consultations during operation is a particularly high point of evaluation.

▫️Conclusion: An operational infrastructure that visualizes “who,” “when,” and “where”

I feel that smart locks should be viewed not just as equipment, but as an **“operational trouble prevention infrastructure.”**
It can handle everything from key handover to move-in/move-out management, history visualization, and raising crime prevention awareness.
For those who want to operate a share house stably from now on, it is one of the items I definitely want you to consider first.

▫️Reference video | Product review: @jun1ch

👉 Product information: [Sesame 5 (Official site or Amazon link)]

▫️Product specifications (overview): Sesame 5

The results of comparing products from multiple manufacturers and selection points are introduced in detail below.
👉【Separate article link: 🔐 I've used smart locks for over 7 years — What is the “key” of trust that a share house operator talks about?】

🧪②PP Through K | The ultimate solution for "that smell" and clogs💥

▫️ Common drainage issues

When operating a share house, minor drainage issues like slow water flow, strange odors from the kitchen, or toilet water levels not dropping occur several times a year. Most of these situations are caused by oil buildup, sludge, hair, or soap scum inside the drain pipes.

▫️ Cases where store-bought pipe cleaners don't work

Pipe cleaners available at drugstores can handle minor dirt, but they are almost ineffective when the source of the clog or odor has accumulated deep inside. Especially in shared housing, usage frequency is high and the drainage environment is harsh, so household-grade chemicals often cannot cope.

▫️ We introduced the "commercial-grade" PP Through K—the cleaner used by professionals on-site

Given that background, we actually introduced "PP Through K," which is used by plumbing professionals. Among the many products in the PP Through series, this "K" is a powerful model designated as a deleterious substance. With a strong alkalinity of pH 13.5 or higher, it is formulated to chemically decompose organic matter and oil stains inside pipes. According to the professionals,

It is a highly reliable chemical that they swear by. Even when we used it ourselves, we felt the clogs being cleared with a gurgling sound, and we experienced effects that store-bought products couldn't provide.

▫️ When and how often should it be used?

• Rather than regular use, it's a "decisive weapon for when things are clogged"
• Use when you notice water not flowing, odors, or bubbles backing up in the kitchen, bathroom, or washroom
• There are moments when symptoms you previously just watched over are clearly improved

▫️ Precautions and safety measures (designated as a deleterious substance)

PP Through K is designated as a deleterious substance, so careful handling is required.
• Always ensure ventilation when using.
　→ Reacting with water can generate irritating gas, which is dangerous and can cause choking
• Do not touch with bare hands. Gloves, masks, and goggles are recommended.
　→ Strong alkali with a pH of 13.5 or higher is dangerous even if it just touches your skin
• Be mindful of storage locations.
　→ It is best to keep it in a locked storage area, away from direct sunlight, high temperatures, and humidity

▫️ How to purchase PP Through K

Because PP Through K is classified as a deleterious substance for non-medicinal use, it is not something you can easily buy at regular stores. When purchasing, you need to be aware of the following points:

▫️ Reference video | How to use: @prokougu

▫️ Conclusion: Before calling a professional for drainage issues—having one bottle on hand makes a difference in peace of mind and effectiveness

Even with minor issues, if the response is delayed, it can lead to the worst-case scenario: drain overflow → water leaking to the floor below → liability for damages.
**PP-Thru K is one of the items you should keep in stock as a "serious option you can take before relying on a professional."**

🔗 Online shops where you can purchase:
• Yahoo Shopping: PP-Thru K 500g x 6-bottle set

💣③ Clog-busting Bazooka Pump | A professional-grade pneumatic pump that clears "unmanageable clogs" in one shot

▫️ What do you do about clogs that a rubber plunger can't clear?

When running a share house, encountering drain clogs in toilets or sinks is unavoidable.
For light clogs, you might be able to handle them with a rubber plunger (the so-called "suppon"), but—
• No reaction when pushing
• Water flows backward
• Bubbles come back up after use

If these symptoms appear, a rubber plunger is no longer enough.

▫️ Reasons for introducing the Asada Low Pump Super Plus

That is when the Asada "Low Pump Super Plus" proves its worth.
It is a professional pneumatic clog-clearing pump also used by plumbing contractors, designed to flush out clogs in one go using the power of compressed air.
It looks like a bazooka, and there is a sense of satisfaction in flushing out foreign objects and dirt stuck in toilets or drains with
about 5 times the water volume of a rubber plunger🤤

▫️ How is it different from a rubber plunger?

• Uses air pressure to generate extremely strong water pressure (suction and pushing force)
• Designed to prevent water from splashing and dirtying the surroundings during use
• Repeated pushing and pulling motions can gradually loosen the resistance of the clog
• Can also be used for drains other than toilets, such as sinks and kitchens

▫️ Tips for use—"Repeated push-pull" + "Ensuring a seal"

I learned this after introducing it, but there are tips for using it effectively:
• It is easier to clear a clog by repeating the "push-pull" motion several times rather than just once
• For flat drains like sinks or kitchens, it is important to cover the area with a wet towel or rag to create a seal so air doesn't escape
• Thoroughly clean and disinfect with alcohol after use for hygiene management

▫️ Reference video | How to use: @hiroshiwork

▫️ Clog response cost comparison table | Which is more profitable, the Low Pump or a professional?

As you can see from the table, if multiple clogs occur in your business, you can recoup the cost of the Low Pump after just one purchase.

▫️ Conclusion: The "game changer of the clog world," the "last resort" you should keep in stock—what you can do before calling a pro

Ever since I introduced the Low Pump Super Plus, I have been able to solve many situations where I previously thought, "I guess this is a job for a professional..." on my own.
Of course, it is not something you use every day.
But having this one tool on hand when the time comes can significantly reduce unnecessary expenses, effort, and the risk of losing trust.

Finally

When running a share house, no matter how careful you are, small troubles are unavoidable. However, relying on professionals for every little thing only costs time and money.
The three items I introduced this time are all things I felt were "indispensable" while actually operating. I can confidently recommend them based on my own experience of being able to solve problems on the same day by having them on hand✨

In the planned sequel, we will cover even deeper and more practical contractor-free items, such as
DIY solutions for pest problems that often lead to expensive bills
. If you want to know more or are curious about what else I use, please follow or click 'Like'.

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We plan and operate over 20 share houses, mainly in Tokyo, with monthly rents starting from the 30,000 yen range. We have over 10 years of operational experience and are committed to safe and secure share house management.