Preparing a swimmer for the water is not just a technical procedure, but a fundamental step that directly affects your safety and product life. PVC boat They make the fatal mistake of ignoring the nuances of pumping cylinders, which leads to deformation of the bottom or, conversely, to rupture of the seams under the influence of the sun, the correct pressure in the compartments ensures the necessary rigidity of the structure and stability on the course.
In this article, we will discuss in detail the process of preparing a boat for operation, using proven techniques and technical recommendations of manufacturers. You will learn why you can not rely solely on tactile sensations and how to avoid common mistakes of beginners.
Choice of equipment for pumping the boat
The first step to a successful boat is to choose the right source of compressed air. The market offers a variety of solutions, from primitive foot furs to high-tech electric compressors. productivity It is often not enough.
If you value your time and effort, you should pay attention to electric models running on a car battery or built-in ones. Li-ion batteriesThey allow you to quickly raise the pressure in the cylinders to the working level, leaving the final fine-tuning manually.
- 🔌 Electrical pumps: Ideal for rapid primary pumping, save the physical strength of the owner.
- 🦶 Scissor pumps: Reliable classics, independent of current sources, are good for accurate final refinement.
- 🖐️ Handheld two-chambered: Often come in the basic configuration, require considerable effort for large volumes.
⚠️ Attention: Never use powerful car compressors for tires without pressure control with a pressure gauge. A sharp jump in pressure can instantly rupture the valve or cylinder seam, as the performance of such devices is too great for thin rubber.
Preparation of the seat and boat for the procedure
Before you start to supply air, you need to properly prepare the site, the surface must be as clean, flat as possible, free of sharp objects, branches or stones, even a small grain of sand caught between the layers. PVC tissue when straightened can become a point of concentration of tension and lead to damage when stretched.
Spread the boat up or down to the side to spread all the folds and the crunches. If you keep the boat folded, let it lie flattened a little, especially in the cold season. The material should warm up and become elastic, otherwise when pumped in the cold. polyvinyl chloride It might crack on the folds.
Make sure to check the valves before you start, make sure they're free of sand, dirt or moisture, wipe the seats with dry rags, and the mud in the valve is a guarantee that it will poison the air or, worse, jam in the open at the most inopportune moment.
If you are preparing the boat in cold weather (below +5°C), bring it into a warm room for 30-40 minutes before pumping. Cold PVC becomes hard and can get microcracks when sharply spread.
Inflatation procedure for cylinders and bottom
There is a strict sequence of actions that dictates the design of most modern inflatable vessels, and violation of this order can lead to skewed design and difficulties with the installation of rigid inflatables. The side cylinders are always inflated first, not to full pressure, but to about 60-70% of normal pressure.
After the initial alignment of the sides, stringers and paioles (if the boat design so requires) must be installed, and only after the floor frame is assembled, the cylinders and, last but not least, the inflatable floor (if any) are finally pumped, which avoids excessive tension of the fabric and strain of the seams.
☑️ Procedure for assembly
Inflatable bottoms High Pressure It's important to be careful, because the bottom is pumped at the last minute, when the sides are already rigid, and this prevents the piole from being squeezed outwards and ensures a smooth cockpit surface.
Pressure control and operation of the pressure gauge
The most critical part of the whole process is controlling the internal pressure, and you can't rely on the hardness of the balloon to press your finger, because the tactile sensations are subjective and depend on the temperature of the environment. gaugeIntegrated into the pump or separate.
Most boat manufacturers have recommended operating pressures ranging from 0.2 to 0.25 atmospheres (or about 3-4 PSIs). Exceeding this value even by 0.05 atmospheres in hot weather can cause a rupture. When heated in the sun, the air inside the cylinders expands, and the pressure increases proportionally to the temperature.
| Type of boat element | Recommended pressure (atm) | Recommended pressure (PSI) | Features of control |
|---|---|---|---|
| Side cylinders | 0.20 - 0.25 | 3.0 - 3.6 | Control with regard to heating in the sun |
| inflatable floor (NDB) | 0.25 - 0.30 | 3.6 - 4.3 | Requires high stiffness for laying floorboard |
| Keel (Kilson) | 0.15 - 0.20 | 2.2 - 2.9 | Do not pump so as not to damage the kilgarspek |
| Inflatable seats | 0.10 - 0.15 | 1.5 - 2.2 | You should stay soft for comfort. |
⚠️ Attention: If you pump the boat in a cool garage or in the morning and the weather is hot in the afternoon, be sure to blow some of the air before going out into the sun. Otherwise, the pressure inside may exceed the permissible limits, which will lead to a high pressure. irreversible stretching of sutures and tearing of tissue.
Using a pressure gauge is not a whim, it's a necessity, and only a gauge will show real pressure, saving the boat from rupture or under-pumping, leading to instability on the water.
Operational nuances at different temperatures
The temperature regime has a tremendous effect on the behavior of gases inside a closed volume of cylinders. The law of physics says that when heated, the gas expands. For the boat owner, this means that the pressure measured in the morning at +15 ° C, by noon at +30 ° C can increase by 15-20%.
In the cold season, the situation is reversed. The air compresses, and the boat may seem slightly "flattened." However, you should not immediately add air when in the cold. It is better to do this already on the water or let the boat warm up. A sharp injection of cold air into a warm tank (or vice versa) can lead to condensation inside, which over time will cause mold.
For winter fishing use PVC boat It requires special frost-resistant models. Ordinary fabrics lose elasticity at temperatures below -10°C. If you still have to operate a standard boat in the cold, try not to drag them on the ice or throw them on the frozen ground.
Typical errors and safety techniques
The repair statistics show that most boat damage is due to improper pumping, and the most common mistake is using open fires or high-powered heat fans to straighten the folds. Thermal effects destroys the structure of polyvinyl chloride and glue, making the material fragile.
Another common problem is ignoring valve closure after pumping. In some models, valves tend to open spontaneously when vibrating or water is injected unless the lock is snapped. Always check the "closed" position before launching.
What if the boat starts poisoning the air?
If you hear hissing, don't try to seal the boat on the water. Make it to shore carefully, pull the boat out, find the damage site with soap solution. Be sure to degrease and dry the surface before applying the glue. Only use specialized PVC adhesives, such as polyurethane two-component compounds.
Safety also applies to the pumping process itself: When working with electric pumps, monitor the temperature of the device itself. Prolonged work at limiting loads can lead to overheating of the engine and melting of plastic parts of the pump, which can short circuit.
Frequently Asked Questions (FAQ)
Can I pump a PVC boat with a compressor from a car?
You can use a car compressor, but only with extreme caution and the mandatory presence of a pressure gauge. The air flow from the car compressor is very powerful, and there is a high risk of quickly exceeding the permissible pressure and breaking the seams. It is better to use it only for the primary straightening of the cylinders, and the final pressure is reached by a manual or foot pump.
Why does the boat become solid in the sun after pumping?
This is the physical effect of expanding the gas when you heat up, so if you pump the boat to its maximum in the shade or in the morning, the pressure inside the cylinders will rise in the sun, so to avoid rupture, always leave a small reserve or blow the air before going out into the open sun.
What pressure is considered normal for an inflatable floor?
For low-pressure inflatable dons (LDPDs), 0.25-0.3 atmospheres are considered the norm. For rigidity comparable to plywood, modern technologies allow you to reach 0.6-1.0 atmosphere in special bottom compartments, but conventional cylinders of such pressure will not withstand. Always check the product passport.
Do I have to completely lower the boat after fishing?
For transportation, yes, it's smaller. But for storage at home, it's better to keep the boat slightly deflated or fully straightened, but not in a compressed bag to avoid cloth cloth cloth cloth cloth. Long-term storage in a highly compressed state can lead to the inner layers sticking together.