I’m an inspector in the sprinkler division for Hampshire Fire Protection. Started in January. Watching all of these dry/wet system videos has been a huge help. Thank you so much. Keep up the great content.

Brand new to the industry. I am a Sprinkler System Designer and found your videos very informative!

Just got into this industry entry level installer! my supervisor thanks you for taking the load off having to answer all my dumb questions

Thank you for this informative and clear video!

Muito obrigado Denny! Thank you very much! Hugs from Brazil!

very well explained

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Why is the flow switch so close to the test an drain?

Please sir make full video in detail of fire sprinkler and hydrant maintenance video