Re: [compost_tea] Rotary Pumps For Brewing

From: Grant - Environmental Fertilisers <grant_at_environmental-fertilisers.co.nz>
Date: Mon, 19 Jul 2004 09:34:27 -0700
Hi David,
This is basically a spa water pump with a venture as a air input.
Regards
Grant
----- Original Message -----
From: "David Anderson" <danderson_at_backpackgeartest.org>
To: <compost_tea_at_yahoogroups.com>
Sent: Wednesday, July 14, 2004 1:16 PM
Subject: Re: [compost_tea] Rotary Pumps For Brewing


> Grant - Environmental Fertilisers wrote:
>
> > Hi Guys,
> > Is there antone else compost/microbe brewing with a low pressure high
> > volume rotary pump set up.
>
> Hi Grant,
>
> Is this a liquid pump or an air pump? At first I assumed liquid, but I
> never heard of HVLP used in relation to liquid pumps.
>
> How deep are your tanks? It seems to me that anything much over 5 feet
> (1.5 m) deep and you be losing most of your airflow due to the lack of
> pressure. The ones that I have used operate at around 1/3 of an
> atmosphere, which would put air cutoff at 10 feet (3 m)
>
> Dave
>
>
>

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Received on Mon Jul 19 2004 - 00:11:21 EDT

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