Thanks, Bob -
Did you go deeper than the 7 1/2 feet the book calls for? What was your
backfill?
Mike
On Apr 30, 2014, at 8:49 PM, Bob Farkaly <bob@farkaly.com> wrote:
> I had a ground water issue when I had my HG70HD installed in the sandy soil
> in Poway near San Diego. The installer had to line the opening with plywood
> sheets. He was careful about bracing the sheets after dropping the base
> assembly into place. In place for 8 years and never a problem.
>
> Bob K9RHY
>
>
> Bob Farkaly
>
>> On Apr 30, 2014, at 20:20, Mike Reublin NF4L <nf4l@comcast.net> wrote:
>>
>> I'm negotiating to get the base for my HG70-HD dug and poured. I have a high
>> water table, soil tends toward sandy, and an engineer said he would be
>> happier if the hole were 10' deep rather than the 7.5' called for in the
>> manual.
>>
>> The concrete guys I'm talking to want to line the hole with plywood to
>> prevent collapse. One guy who does a lot of big sign installations says he
>> does it regularly, and there would be no stability issues.
>>
>> I've read several times the pour needs to be into undisturbed soil, no
>> backfill, altho that's not in the manual.
>>
>> What are the facts?
>>
>> 73, Mike NF4L
>>
>>
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