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View Full Version : hole drilled in sump, how to plug??


codydemmel4
04/15/2016, 05:08 PM
So I bought this 40g sump from a fellow reefer and I didnt get it till it was dark out.

I just realized that there is a hole drilled in the side of the tank on the end where the return pump will be. I was wondering if there is anyway I can plug this or what can I do? The water will never get this high unless the power goes out, which obviously I have to plan for so I want the hole to be plug.

http://s22.postimg.org/wu67qlw6l/IMG_8525.jpg (http://postimg.org/image/wu67qlw6l/)

http://s22.postimg.org/wsw9x6uct/IMG_8526.jpg (http://postimg.org/image/wsw9x6uct/)


Thanks!!

cheucklate
04/15/2016, 05:12 PM
bulk head + pvc cap on both ends?

MelloW33
04/15/2016, 05:21 PM
Glass sump? Small piece of glass and silicone or bulkhead and pvc plug.


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codydemmel4
04/15/2016, 05:49 PM
Yeah it is a glass sump. Both of those sound good idk about the bulkhead though. It's a really small hole.

elFloyd
04/15/2016, 05:54 PM
USPlastic.com sells clear plastic discs in various sizes for a couple bucks. Grab one, apply silicon, and cover the hole.

MadCnty
04/15/2016, 06:07 PM
Bulkhead, end cap is your best bet IMHO...

Breadman03
04/15/2016, 07:14 PM
That hole looks like it is about 1/4", so likely too small to find a bulkhead. If you call a local glass shop, you will probably be able to get a piece of scrap glass from them for a song. I'd make a clean, uninterrupted circle of silicone around the hole, place the glass over it with a moderate weight over it (maybe a soul can) to keep some pressure on it.

codydemmel4
04/17/2016, 08:49 AM
That hole looks like it is about 1/4", so likely too small to find a bulkhead. If you call a local glass shop, you will probably be able to get a piece of scrap glass from them for a song. I'd make a clean, uninterrupted circle of silicone around the hole, place the glass over it with a moderate weight over it (maybe a soul can) to keep some pressure on it.

this probably sounds like the best idea and what I will probably do.

Thanks!!

Devaji108
04/17/2016, 12:51 PM
if in doubt do both sides...

codydemmel4
04/17/2016, 03:25 PM
what silicone should I use?

Breadman03
04/17/2016, 05:50 PM
From a guy who seems to be very knowledgeable:

Take note, he suggests RTV103 if you want black seams or RTV108 if you want clear.

RTV102, RTV103, RTV106, RTV108, RTV109, RTV112, RTV116 and RTV118 one-component, ready-to-use adhesive sealants are extremely versatile. They cure to a tough, durable, resilient silicone rubber on exposure to atmospheric moisture at room temperature. Acetic acid vapors are released from the sealant surface as a by-product of cure.

RTV102, RTV103, RTV108 and RTV109 sealants are standard strength paste consistency products which can be applied to vertical and overhead surfaces where pourable/self-leveling sealants are not practical.<o></o>

RTV112 and RTV118 sealants are self-leveling products which are preferable to paste-consistency sealants when flow into small crevices and hard-to-reach places is desired.<o></o>

RTV106 sealant is paste-consistency sealant. RTV116 sealant is a self-leveling sealant. Both RTV106 and RTV116 sealants are standard strength high-temperature sealants.


In other words:
RTV102 White
RTV103 Black
RTV108 Translucent
RTV109 Aluminum
are genreal purpose


RTV106 Red
is a high temperature paste

RTV116 Red
is high Temperature

RTV112 White
RTV118 Translucent
are general purpose.

RTV102, RTV103, RTV108, RTV109, all have identical physical properties. The others are less "strong" in tensile, elongation, and tear strength.

Is it safe? First you must sign the papers..........

<o></o>


FDA (http://www.momentiveperformancematerials.com/momentiveInternetDoc/MPM/Static%20Files/Documents/Data%20Sheets/%5CUSADataSheets%5C4319_food_contact_applications.htm) STATUS<o></o>
RTV102, RTV103, RTV106, RTV108, RTV109, RTV112, RTV116 and RTV118 sealants can be used in food contact applications where FDA (http://www.momentiveperformancematerials.com/momentiveInternetDoc/MPM/Static%20Files/Documents/Data%20Sheets/%5CUSADataSheets%5C4319_food_contact_applications.htm) regulations apply. Reference CDS4319 ?Food Contact Applications, Silicone Rubber Compounds?, for specific regulations, limitations and conditions of use.


USDA STATUS<o></o>
RTV102, RTV103, RTV106, RTV108, RTV109, RTV112, RTV116 and RTV118 sealants may be used on equipment which may contact edible products in official establishments operating under the Federal meat and poultry products inspection program. See USDA letter of Authorization. Refer to Momentive Performance Materials bulletin CDS #4319 before use.


Is it tough?

MILITARY SPECIFICATION<o></o>
MIL-A-46106<o></o>
<table style="border: 0.75pt outset ; width: 294.75pt;" width="393" border="0" cellpadding="0" cellspacing="1"><tbody><tr> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 77.25pt;" width="103"> Group I
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 53.25pt;" width="71"> Type I
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 164.25pt;" width="219"> General Purpose Paste
RTV102, RTV103, RTV108, RTV109
</td> </tr> <tr> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 77.25pt;" width="103">
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 53.25pt;" width="71"> Type II
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 164.25pt;" width="219"> General Purpose Flowable
RTV112, RTV118
</td> </tr> <tr> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 77.25pt;" width="103"> Group III
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 53.25pt;" width="71"> Type I
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 164.25pt;" width="219"> High Temperature Paste
RTV106
</td> </tr> <tr> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 77.25pt;" width="103">
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 53.25pt;" width="71"> Type II
</td> <td style="border: 0.75pt inset ; padding: 0.75pt; width: 164.25pt;" width="219"> High Temperature Flowable
RTV116
</td></tr></tbody></table>
This information, is not contained in the MSDS sheets for these products, you can tell little if anything by reading the MSDS, as most will not even know what the chemical formulations mean (some have food color in them)

What does it mean? It is strong and safe. Really the only two that have any use in an aqaurium are RTV103, and RTV108 (Black and translucent respectively) They have identical properties, the same material, just different color.

A tour of the AGA/Aqueon facility, revealed that these are the products used to build tanks. It is not the same product that is packaged for consumer use, under the AGA/Aqueon lable, as the MSDS sheets indicate. A conversation first with GE, quite some time ago, and another conversation with Momentive, revealed that the RTV100 series silicones are the most used silicones by tank builders.

Silicone is not intended for, or recommended for, attempting to bond acrylic to glass. The properties that glass and silicone hold in common (inorganic silica) are responsible for the strong bond. Acrylic, being an organic based material (oil derivative) does not have these properties.

There is little more to say on this topic. Hopefully this one will go back to sleep :D

codydemmel4
04/17/2016, 06:54 PM
awesome, thanks!!!

jrp1588
04/17/2016, 07:51 PM
That's probably from an auto topoff, right? Why not use it for an auto topoff?