Frequently Asked Questions (FAQs)
1. What is a good PSI for a gas pressure washer?
A good PSI range for a gas pressure washer depends on the task. For heavier residential tasks, a moderate strength unit with 2,000 - 2,900 PSI is suitable. Professional pressure washers and contractors typically use high-pressure models with 3,000 - 6,900 PSI for more demanding jobs.
2. How do I choose a replacement pressure washer pump?
To choose a replacement pressure washer pump, you need to match the PSI (pressure rating) and GPM (gallons per minute) of your old pump with those of an available replacement. It's important not to go for a pump with significantly higher PSI, as it can strain the engine or exceed the burst rating of your hose.
3. How can you tell if your pressure washer pump is bad?
Signs of a bad pressure washer pump include water leaks, oil leaks, inconsistent pressure, low pressure, and loud noises. If there is a crack in the pump causing water leakage, the entire pump needs to be replaced. Oil leaks may indicate damaged seals, gaskets, or pistons. Inconsistent or low pressure and loud noises are also indicators of a faulty pump.
4. Which is better axial or triplex pump for pressure washer?
Axial cam pumps are direct drive and offer high pressure and performance, but they tend to wear down faster. Triplex plunger pumps, on the other hand, are of higher quality and provide longer life and better performance. For superior durability and performance, a triplex pump is recommended.
5. Is a pressure washer better than a higher PSI or GPM?
The preference between higher PSI (pressure) or GPM (gallons per minute) depends on the application. Contractors or professional cleaners often prefer a higher GPM machine over PSI because they use cleaning solutions to loosen grime, making rinsing the dirt away the primary task. Higher GPM allows for faster cleaning of large surfaces.
6. Will 2000 PSI clean concrete?
A medium-duty pressure washer with 2000-2800 PSI is suitable for cleaning concrete, brick, and wood surfaces. It works effectively for cleaning patios, sidings, roofs, decks, fences, and other similar areas.
7. Is 2000 PSI too much to wash a car?
When washing a car, it is recommended to avoid using a pressure washer above 2,200 PSI. A pressure washer with 1,500 PSI is sufficient for a deep clean, and higher pressure won't make a noticeable difference in performance.
