When using a thin tube like this, the water often doesn't level exactly. To avoid this, put a little dish washing liquid in the container and mix it up before putting it in the tube. You should see much more accurate results! Dishwashing soap reduces water surface tension and makes water "wetter"!

This is how Egyptian’s constructed precious buildings that stand today. As a 70 year old and working in a Plumbing union for 45 years I watched some of the old timer’s use this laying tile on hospital’s and high rise buildings. Thanks for educating those who want accuracy. I have witnessed Lazer failures due to calibration on job sites that have been costly to those trusting Lazer’s. They are great and efficient until the calibration gets off. Water levels are full proof.

This is very good to use if you forget to bring the Lazer . It's something that old builders would use in the past but younger ones don't know about! Good to pass on to the new generation. Very valuable.

While there are tons of other reasons, this video gives another glimpse at and explains why African construction work is disastrous in general...

Well not that long ago, 1980’s when I started as an electrician this is all the contractors used for installing T-bar, drop ceiling grids. I’m sure it’s been around for decades and centuries. Laser Levels have mostly replaced this method, but it is still popular in many area’s.

I've used this method for laying out ceiling grid. I didn't have a long enough piece of clear tubing so I used a garden hose with 1' pieces of clear tubing at both ends, held in place by clamps, and it worked great.

I've used water levels several times when building decks. So easy to use. But you've got to pay attention to what you're doing.

Old, old, been done 80 years ago.

Great video … a quick tip, put a couple of drops of liquid soap in the water before you fill the line the coefficient of friction will be lowered and the bubbles are easier to remove. The level is achieved quicker as well.🤠👍🔨

Doing this make sure outside temperature is not too high. Water can be expanded or formed bubbles in the tube.

I've used a water level many times while doing stonework.

I have learned this from my father (I am 40 now)....It is easy and usefull. Thank for the video. Greetings from Serbia.

Useful tip. Clear explanation and good demonstration without wasting lots of extra time.👍

Wow, I used that method for a foundation. Works great - as long as there are no air bubbles, as you said.

I've seen the Afghanis use these to great effect building large septic tanks and grade for drainage. Great stuff.

I remember using water levels in early 70s to set levels around corners

Great video very useful very simple. Greetings from California.

So simple yet so accurate 👍 TY

Good explanation! My brother ! I’m African/ Puertorican. Last name Yambó

Very nice love from india