Are laser levels any good?

[Chris Lewis]

It's a true statement within limits ;-) It starts getting fussy when you have 100' of thin tubing.

There are other things to consider like how well the tubing is wetting, air bubbles, air locks, and even microbubbles you can't see. Dye so old farts like us can see the water level. Detergent to minimize wetting/meniscus parallax problems etc.

You have to set it up carefully before you can trust it. It's not quite so portable. And sometimes you get wet ;-)

Decent tubing for a water level may end up costing more than an "adequate" laser level.

So they may not even be cheaper. But they _will_ go around corners ;-)

There are benefits to both.

[Chris Lewis]

Depends on the time of day ;-)

Even a perfectly straight line will hit the ground if you make it long enough. Think: horizon.

[MilkyWhy]

In fact, a poorly made or installed mirror or lens in the laser can easily result in a distorted laser line being cast.

[SteveB]

"Chris Lewis" wrote

Wouldn't a straight line go off into space? The curvature of the earth would be downward AWAY from the line.

Steve

[Dave Balderstone]

Nope. The earth is actually a sphere encompassing the known universe.

;-)

[Chris Lewis]

According to MilkyWhy :

But the beam is still _straight_.

[effi]

yes

[Yankee Rebel]

Just get a long clear hose and fill it with water then close the ends with a bolt. Duct tape the end to where you want to chaulk your line.

I'm still trying to get this goddamned microchip out of my back that George Bush and the secret service stuck there in 1982.

[eish]

Er, no. Do NOT close the ends or it won't work. The water will not be able to push through the air trapped in the hose.

Kapeesh?