Open water season dictates its rules, and how well you prepare the boat for the water, depends not only on the comfort of the walk, but also on your safety. Many owners of inflatable boats make critical mistakes on the shore, believing that the pumping process is primitive. PVC materials They require delicate handling and strict adherence to technology to serve for decades.
Incorrect pumping can lead to deformation of the bottom, rupture of the seams or, conversely, to a sluggish structure that is poorly controlled on the wave. pressure You can show how to take into account temperature changes and why you can't rely on the touch alone. Proper preparation is the guarantee that your boat will withstand any test on the water.
You will learn about the nuances of working with different types of pumpWe'll eliminate the theory and focus on the practical aspects that apply to boats of all brands, and prepare for the season competently, so that nothing will overshadow your vacation.
Choosing the Right Equipment for Pumping
The first thing the owner faces is the choice of air source. Standard foot frogs, which come with budget models, are suitable only for emergencies or blowing. pump-pump The use of inappropriate equipment increases the preparation time and the risk of valves overheating.
Electric models speed up the process significantly, but there is an important caveat: they often fail to provide the final pressure required for the process. high-pressure cylindersMost electropumps are volume-based, not pressure-based, so the final phase always has to be done manually, not by the manufacturer, but by the warranty.
⚠️ Warning: Never use tire-based car compressors without a pressure gauge and pressure relief valve, and they can instantly “pump” the thin walls of the cylinder, causing the seams to rupture before they even enter the water.
The best solution is a two-stage system: quick injection of the main volume of air with electricity and the addition of mechanical bivalves to the operating parameters, which saves the life of your equipment and nerves, and it is also important to keep the air intake clean so that dust and sand do not get into the valve system.
When choosing a hand pump, pay attention to the material of the pistons and the tightness of the cuffs. Cheap analogues often let the air back in, forcing you to make unnecessary movements. double-pump It allows you to adjust the force, so you start with one chamber for volume, then you plug in a second chamber for pressure, and it reduces the physical load on the operator.
Phased pumping technology of the vessel
The process of bringing the boat into working condition can not be forced. There is a proven technology that minimizes stress on the material. polyvinyl chlorideFirst, the cylinders are pumped to about 60-70% of their nominal value, then a rigid inflatable floor (HBB) is installed, and only then the final fine-tuning of all the elements is done, and violation of this sequence can lead to a distortion of the structure.
If your model is equipped keelIt should be pumped last or according to the manufacturer's instructions. Often the keel acts as a tensioner, and its excessive pressure before the slingboard is installed can deform the geometry of the cockpit. The uniform distribution of pressure is the key to the correct shape of the vessel.
☑️ Checklist of preparations
After the initial pump, be sure to let the boat lie down for 10-15 minutes, the material should stretch, the seams should fall into place, only after this "drying" can you start the final stage, ignoring the pause often leads to the fact that after an hour the water pressure drops, and the boat becomes sluggish.
Pay special attention to the squirrel board, although it's not inflatable, the correct positioning of the cylinders relative to the transom is critical. When pumping, make sure that the cylinders do not turn and lie flat, this will ensure the correct positioning of the cylinders. hydrodynamics and stability on the course when driving for an outboard motor.
Working pressure and temperature nuances
One of the most common questions concerns the pressure gauge numbers: the standard operating pressure for most on-board cylinders is the range from 0.2 to 0.25 atmospheres (or 200-250 mbar). For the inflatable floor (kilson), the values can be higher - up to 0.3-0.4 atmospheres, which provides the rigidity required for installation. boat-engine.
The physics of gases is relentless: when you heat up, the air expands, and if you pump the boat in the morning in cool weather to the limit, by noon, under the scorching sun, the pressure inside can rise by 30 to 40 percent, and this creates an excessive tension of the fabric, which is fraught with cotton seams. In hot weather, it is recommended not to reach the maximum pressure limit, leaving a small reserve..
| Air temperature | Recommended action | The risk of neglect |
|---|---|---|
| Below +10°C | Pump to normal, control the fall | The boat will become "sluggish" on the water |
| +15...+25°C | Standard passport pressure | Optimal operating mode |
| Above +30°C | Reduce blood pressure by 10-15% of normal | Seeds rupture from air expansion |
The reverse is when you go out in the early morning or in cold weather, and the pressure can drop and the boat will lose shape, and you need to have a pump for rapid pumping. gauge - the habit of an experienced boater.
If you pump a boat in a warm garage and take it out into the cold, the pressure will drop dramatically. Don't be afraid or try to pump it to the end, it will recover in the sun. Better add air on the shore before descent.
Work with valves and tightness
Modern boats are equipped with petal or swivel valves that require proper handling. Before installing the pump, make sure that the valve is in the closed position (if it is a turning mechanism) or that the petal is not clamped with sand. pollutation.
When using hand pumps with adapters, it is important to insert them strictly perpendicularly, without distortion. Distortion can damage the inner membrane of the valve, which will lead to the need for repair in the service center.
⚠️ Warning: After pumping, always wipe the area around the valve with a dry cloth. Moisture trapped in the valve mechanism during storage can lead to oxidation of the spring or petal freezing in winter.
A leakproofing test is a mandatory procedure for a new boat or after long storage. Use a soap solution: apply foam to the joints of cylinders, bottom and valves. The appearance of bubbles will indicate the site of the leak. Minor defects can be repaired with a repair kit included in the repair kit. base-line.
Common mistakes in pumping
Experienced users and newcomers often step on the same rake. One of the main mistakes is trying to pump the boat "before the bell", focusing on the hardness of the balloon to the touch. In the sun, such a balloon will burst. The other extreme is underpumping, which causes the boat to hold its course poorly and collect water for splashers.
The use of a dirty or wet pump is also unacceptable. The inside of the balloon should not get moisture, as this contributes to the development of mold and microorganisms that destroy the air. reinforcement Always keep your equipment clean.
What to do if the boat is poisoning the air?
If the boat is going down slowly overnight, find the leak site with soapy water. Degrease the site, shave with fine sandpaper, apply PVC glue, let it dry for 10 minutes, press the patch and roll. Leave to dry for 24 hours.
Another mistake is pumping on asphalt or stones without litter. Although the bottom of the boat is solid, hot asphorus can locally overheat the material, and sharp stones can damage it under the weight of the pumped structure. Always use a special litter or choose soft ground.
Storage and conservation after use
The proper preparation ends not in the water, but in the home. Before packing, the boat must be thoroughly washed of mucus and sand, and most importantly, completely dried. Packing wet PVC leads to irreversible processes of decay of the fabric and the appearance of unpleasant odor, which is then difficult to get rid of.
Keep the boat straightened or slightly deflated, away from heaters and direct sunlight. Dramatic temperature changes and ultraviolet light destroy the structure of the polymer, making it brittle. floater for many seasons.
Check the valves and joints regularly in the off-season, check for minor defects before they cause a water accident, and take care of the equipment is a sign of professionalism.
The main secret of the longevity of the PVC boat is not to pump it in the sun and always completely dry before packaging for storage.
Frequently Asked Questions (FAQ)
Can I pump a PVC boat with a compressor from a car?
Car compressors can only be used with extreme caution and necessarily through an additional pressure gauge. Car pumps develop high pressure (2-3 atmospheres), which is many times higher than the norm for a boat (0.25 atm). Without control, you risk breaking the seams in seconds. It is better to use specialized electric pumps for boats with auto-stop function.
Why does the boat get soft after going out in the sun?
It's a physical paradox that's often confused, and in fact, if the boat was pumped in a cool room and then brought out into the heat, the pressure must rise, and if the boat became soft, it must have been under-performed initially, and the stretching of the tissue under the temperature just revealed the lack of air volume, or there is etching through a loosely closed valve.
What pressure is considered normal for an inflatable floor?
For high-pressure inflatable bottoms (HPD), the normal range is 0.3–0.4 atmospheres (300–400 mbar), which must be as rigid as a drum to provide proper hydrodynamics and counterwave protection, and is typically pumped to 0.2–0.25 atm.
Should I lower the boat overnight if it is on the water?
Yes, it's desirable. At night, the temperature drops, the pressure inside decreases, and the boat can blow off or draw water. In the morning, when it gets hot, the pressure will rise dramatically, which is dangerous for the seams. If you leave the boat on the water, you need to constantly monitor the pressure and put the excess air, or put it ashore.