All times are UTC + 8 hours




Post new topic Reply to topic  [ 5 posts ] 
Author Message
PostPosted: Dec 30th, '18, 08:08 
Offline
Newbie
Newbie

Joined: Jan 2nd, '18, 19:49
Posts: 36
Gender: Male
Are you human?: yes
Location: Austin, TX, USA
I am working on a redesign for my small system, converting to a CHIFT PIST.

See below. Pencil is existing: blue pen is proposed tie in to existing (replacing timed flood and drain with a bell siphon).

Image

Maximum water surface elevation in the sump is approximately the same as bottom of the grow bed.

FT will empty directly into the GB. GB will have a new bell siphon, following Mr Damage and University of Hawaii guidelines (1.5" dia. stand pipe with 3 or 4" diameter bell).

Almost everything I have found online shows the bell siphon emptying to open air. In order to maintain adequate water volume, I will have to drain into an existing closed loop. The below thread seems to indicate that I can do this, provided I have a snorkel at the outlet.

viewtopic.php?f=1&t=29970&hilit=bell+siphon+drain+into+water

Will this work?


Sent from my iPhone using Tapatalk


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Dec 30th, '18, 09:58 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 17th, '07, 12:53
Posts: 444
Location: Riverland Sth Australia
Gender: Male
Are you human?: Yes
Location: Riverland Sth Australia
Should work providing the growbed is high enough

Make sure the snorkel is supported and secure . :think:

_________________
My System
viewtopic.php?f=18&t=12070


Top
 Profile  
Reply with quote  
PostPosted: Dec 30th, '18, 20:23 
Offline
Newbie
Newbie

Joined: Jan 2nd, '18, 19:49
Posts: 36
Gender: Male
Are you human?: yes
Location: Austin, TX, USA
Thanks, Terra. I’ll give it a shot


Sent from my iPhone using Tapatalk


Top
 Profile  
Reply with quote  
PostPosted: Jan 19th, '19, 14:47 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jan 18th, '11, 08:29
Posts: 422
Images: 0
Location: Western NC
Gender: Male
Are you human?: Unknown Cyborg
Location: North Carolina
May be too late now but in the parts I highlighted red below maybe use pretty large pipe like 3-4" and 2" vertical air pipe at the end to help reduce back pressure, may help it be more reliable? (Assuming the horizontal part is completely above the water level of the sump so it's empty, if it has water in it probably won't do much.)

Attachment:
Clipboard01.png
Clipboard01.png [ 341.55 KiB | Viewed 729 times ]

_________________
LowCarbTNPer's Systems: [v3] [v2] [v1]

Arduino UNO Data Sender / Logger


Top
 Profile  
Reply with quote  
PostPosted: Jan 19th, '19, 20:33 
Offline
Newbie
Newbie

Joined: Jan 2nd, '18, 19:49
Posts: 36
Gender: Male
Are you human?: yes
Location: Austin, TX, USA
Not too late - I've been overwhelmed with work and unable to do more than feed the fish and pull a head of lettuce every day or two. With current FT position, maximum water level is about even with bottom of GB. The current FT will be converted to sump in my more recent design, and it looks like I need to try to bury it at least a few inches. Thanks for the advice!


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC + 8 hours


Who is online

Users browsing this forum: No registered users and 11 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.063s | 21 Queries | GZIP : Off ]