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How to Join OPGO

You can join us as a Registered User on a 10 week free trial (with access restricted to parts of the site), then as a (paying) Member.

The steps are as follows:

1) navigate to www.opgo.co.uk/discuss(external link) and click on the link: Register to register on the site. You will be asked if you agree to the terms and conditions of the OPGO sign up agreement, and if you do so, you will be taken to the Registration Form. As soon as you submit the form to you us you should receive an email to say the form has been received. Registration requires a genuine email address.

We recommended that you read our Constitution, Organisation Rules, Privacy Policy, Use of Logo Agreement and Community Licence before signing up.

2) Once the details you give us have been checked then you will normally receive another email saying that your account has been activated. We will check all Gas Safe Registration numbers, though there are other Criteria for Membership. We will check you are who you say you are based on the information you give us. If there is any unclear information you may get a friendly call to check up on any details and welcome you to OPGO.

Once you join we ask that you go to the forum Introduce yourself(external link) and let everyone know a bit about you.

When your account is activated you will get immediate access to the page How to Pay your Membership Fee (login required). This link is contained in the 'Welcome to OPGO' email, so you can register then pay. Currently you can pay by bank transfer (BACS) or send a cheque.

Search box


Non Advanced Search or Natural Search

The documents are returned sorted on relevance depending on order, proximity, frequency of terms.

Advanced Search or Boolean Search

Default search behavior

By default, all search terms are optional. It behaves like an OR logic. Objects that contain the more terms are rated higher in the results and will appear first in their type. For example, wiki forum will find:

  • objects that include both terms
  • objects that include the term wiki
  • objects that include the term forum

Requiring terms

Add a plus sign ( + ) before a term to indicate that the term must appear in results. Example: +wiki forum will find objects containing at least wiki. Objects with both terms and many occurences of the terms will appear first.

Excluding terms

Add a minus sign ( - ) before a term to indicate that the term must not appear in the results. To reduce a term's value without completely excluding it, use a tilde. Example: -wiki forum will find objects that do not contain wiki but contain forum

Grouping terms

Use parenthesis ( ) to group terms into subexpressions. Example: +wiki +(forum blog) will find objects that contain wiki and forum or that contain wiki and blog in any order.

Finding phrases

Use double quotes ( " " ) around a phrase to find terms in the exact order, exactly as typed. Example: "Alex Bell" will not find Bell Alex or Alex G. Bell.

Using wildcards

Add an asterisk ( * ) after a term to find objects that include the root word. For example, run* will find:

Reducing a term's value

Add a tilde ( ~ ) before a term to reduce its value indicate to the ranking of the results. Objects that contain the term will appear lower than other objects (unlike the minus sign which will completely exclude a term). Example: +wiki ~forum will rate an object with only wiki higher that an object with wiki and forum.

Changing relevance value

Add a less than ( < ) or greater than ( > ) sign before a term to change the term's contribution to the overall relevance value assigned to a object. Example: +wiki +(>forum < blog) will find objects that contain wiki and forum or wiki and blog in any order. wiki forum will be rated higher.


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