Circular Saws

There are several types of circular saws available today and so the one you should use should be the one best suited for your job in hand. A Circular Saw 2016 can either be one powered by mains electricity or one powered by a battery pack and whilst the battery pack powered saw may be more versatile, able to be used in confined spaces or in remote locations, the mains powered saw provides continuous use without having to stop to be recharged.

Having decided which power source is best suited for your work, there are still choices as to which saw to use. The Sidewinder is perhaps the most commonly used as it has a motor and blade which are in line, providing better accuracy in an easy way however, a Worm Drive saw will provide more power for cutting thicker or harder woods. AS the Worm Drive saw has a motor and blade which are at right angles to each other, they need a system of gears in order to function and those gears are therefore also able to create more power to the blade. A Trim Saw can always be used to finish most tasks, perhaps trimming mouldings and the like and because the trim saw is lighter and is usually accompanied with a blade that has smaller, sharper teeth, it can provide precision with much more ease for a smooth finish to any job.

The blades which you use with your circular saw are also important and so the correct selection of blade for each job can make that job far easier. Circular saws can also cut masonry as well as wood but if that is what you intend to use your circular saw for, you should ensure that you use masonry blades. The masonry blades have been specifically designed for use in cutting bricks and concrete and so have an added layer of abrasive material on their blades. Although this added abrasiveness is ideal or masonry work, it is not suitable for using with wood. For cutting wood, a plywood blade is most commonly used and is perhaps ideal except that they are not very durable as they have no protective coating, meaning that they wear down quickly. A more durable blade is the ripping blade as it has a protective coating but its larger teeth only make it suitable for cutting with the grain of any wood. If you need to cut across the wood’s grain, a cross-cutter blade is recommended as its smaller teeth make the cutting much easier.

There are of course other blades that can be considered including a combination blade which can be used for cutting both with the rain and across it, a tile blade which has special coating and smaller teeth, making it ideal for cutting ceramic or stone tiles.
Whichever circular saw and blades you decide to use, you should always remember that safety should come first and so ensure that you only use the saw whilst wearing a pair of suitable goggles.

Understanding Pond Aeration

Although most people with ponds already have a pond aeration system, not all of those people fully understand their value. The need for an aeration system will gladly be explained to you by a supplier who will probably also offer you pond aerator support but basically, a pond aeration system is needed to help the water in your pond stay healthy. As a pond is a stagnant body of water, it will not naturally have contact with the air other than at its surface. This means that the water at the lower depths of the pond will become starved of oxygen and the proportion of that un-oxygenated water will grow. Without oxygen the water cannot sustain fish life but algae can thrive. The algae will start to grow at the lower depths and then eventually take over the whole pond which will become unsightly and smelly. An aeration system is therefore necessary as it either makes the water come in contact with the air or introduces air to the water in the pond. Aeration systems can basically be broken down into two categories; those for shallower ponds with a depth of no more than 6 feet and those for deeper ponds with a depth of over 6 feet but there are several systems available for both categories. Perhaps the most popular aeration system for the shallower ponds is a fountain. A fountain is an effective aerator but also adds character and beauty to a pond and that probably accounts for its popularity. How the fountain works as an aerator is that it tosses the water in the air, allowing that water to become aerated. The fountain though, does not keep tossing the same water in the air it creates a circulation which allows all the water to get a chance to be tossed in the air, keeping the entire body of water aerated.

The propeller system is also popular but instead of tossing water in the air to be aerated, it relies on the water being aerated from the agitation the propellers cause in the water. Like the fountain though the propellers also cause a circulation enabling all the water to be aerated. These two systems are for shallower ponds as the circulation they create only affects the water to a depth of about 6 feet. For deeper ponds a diffusion aeration system is usually used. The diffusion system comprises 3 parts, a compressor and a diffusion unit which are connected by an air hose. When working and Sitting on the banks of the pond, connected to a power source, the compressor pushes air through the hose to the diffusion unit which is located at the bottom of the pond. As the air reaches the diffuser, the diffuser releases it into the deep water. The air continues to aerate the water as it travels to the surface, ensuring all the water, at all depths, is adequately aerated. Today it is possible to get aeration systems that co0me with their own power supplies for ponds which are in remote locations.