Dodging the Bullet at the K9ZW Island QTH

Water on the Floor Basement at the K9ZW Island HomeFlooded Yard at K9ZW Island HomeAt our Island home several massive storms dropped over 3 inches of rain in a short period first flooding our yard, and then overwhelming our sump pump.


  • First the yard 10 hours after the rain stopped (it is usually bone dry, and is 8-10 inches of soil over the rock) with over an inch of standing water.

Flooded Yard at K9ZW Island Home

  • Second is the basement with 2-1/2 inches of water on the floor.


Water on the Floor Basement at the K9ZW Island Home

What tipped us off was one of the Home Monitor systems we have – the simple one that calls on POTS (Plain Old Telephone System) with alerts – started calling with a Water Alarm.

The device is a “Control Products FreezeAlarm Homesitter Temperature, Water, Power Alarm HS-700” – link

This $90 device saved the day by calling us repeatedly with alerts.  Estimates are that water could rise to about 18-24 inches in the basement before enough systems would get knocked out to set off our other monitors.  (We also have Canary devices for security and backup, but they cannot sense the water issue directly.)

With this much water that was a possibility of intervention didn’t happen right away – which is why the alarm worked so well!

The shack is on a rolling radio bench with power supplies and some gear 7 inches off the floor, so the important stuff would begin to be damaged, as would the boiler and everything on the lowest storage shelves.

Plumber and Painter we are working with have the water issue resolved (both short term and also a long term solution figured out) and only my boxes of Hardline/Coax which you see got wet because we caught it this early.

I’ve just ordered another of the “Control Products FreezeAlarm Homesitter Temperature, Water, Power Alarm HS-700” to install at our main house.

Well worth it!



3 thoughts on “Dodging the Bullet at the K9ZW Island QTH

  1. Jeff Davis says:

    That was a close call! Glad you caught it in time. 73, Jeff KE9V

  2. Hope that your damage was not too extensive, and glad you had an alert before the problem became a much worse disaster. Long term, backup sump pump?

  3. k9zw says:

    Contractor is installing a better/longer outflow pipe with check valves and redundancy for bot the outlets and for two pumps.

    Basically 3 inches of rain in an hour overtasked the existing system, and the backup/augmentation was all manual. Previous property owner was a full time resident so that worked out, but is not the solution for weekend residents like us.

    Have ordered another House Minder with a pair of sensors to install at the home QTH, as though we have never had water in the lowest level, and it is design to not need a sump, we could still have a water problem from plumbing or a foundation break and not know it.

    I want to know – why do these alarms happen so often when a person is away or abroad? This is the second time we’ve had one while at home (the other was an extended power outage alarm).

    Thank you all for the kind wishes!



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